Data Dictionary: Census 1990
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Survey: Census 1990
Data Source: U.S. Census Bureau
Table: P87. Race Of Householder By Age Of Householder By Household Income In 1989 Dollars [356]
Universe: Households
Table Details
P87. Race Of Householder By Age Of Householder By Household Income In 1989 Dollars
Universe: Households
Variable Label
P087_001
P087_002
P087_003
P087_004
P087_005
P087_006
P087_007
P087_008
P087_009
P087_010
P087_011
P087_012
P087_013
P087_014
P087_015
P087_016
P087_017
P087_018
P087_019
P087_020
P087_021
P087_022
P087_023
P087_024
P087_025
P087_026
P087_027
P087_028
P087_029
P087_030
P087_031
P087_032
P087_033
P087_034
P087_035
P087_036
P087_037
P087_038
P087_039
P087_040
P087_041
P087_042
P087_043
P087_044
P087_045
P087_046
P087_047
P087_048
P087_049
P087_050
P087_051
P087_052
P087_053
P087_054
P087_055
P087_056
P087_057
P087_058
P087_059
P087_060
P087_061
P087_062
P087_063
P087_064
P087_065
P087_066
P087_067
P087_068
P087_069
P087_070
P087_071
P087_072
P087_073
P087_074
P087_075
P087_076
P087_077
P087_078
P087_079
P087_080
P087_081
P087_082
P087_083
P087_084
P087_085
P087_086
P087_087
P087_088
P087_089
P087_090
P087_091
P087_092
P087_093
P087_094
P087_095
P087_096
P087_097
P087_098
P087_099
P087_100
P087_101
P087_102
P087_103
P087_104
P087_105
P087_106
P087_107
P087_108
P087_109
P087_110
P087_111
P087_112
P087_113
P087_114
P087_115
P087_116
P087_117
P087_118
P087_119
P087_120
P087_121
P087_122
P087_123
P087_124
P087_125
P087_126
P087_127
P087_128
P087_129
P087_130
P087_131
P087_132
P087_133
P087_134
P087_135
P087_136
P087_137
P087_138
P087_139
P087_140
P087_141
P087_142
P087_143
P087_144
P087_145
P087_146
P087_147
P087_148
P087_149
P087_150
P087_151
P087_152
P087_153
P087_154
P087_155
P087_156
P087_157
P087_158
P087_159
P087_160
P087_161
P087_162
P087_163
P087_164
P087_165
P087_166
P087_167
P087_168
P087_169
P087_170
P087_171
P087_172
P087_173
P087_174
P087_175
P087_176
P087_177
P087_178
P087_179
P087_180
P087_181
P087_182
P087_183
P087_184
P087_185
P087_186
P087_187
P087_188
P087_189
P087_190
P087_191
P087_192
P087_193
P087_194
P087_195
P087_196
P087_197
P087_198
P087_199
P087_200
P087_201
P087_202
P087_203
P087_204
P087_205
P087_206
P087_207
P087_208
P087_209
P087_210
P087_211
P087_212
P087_213
P087_214
P087_215
P087_216
P087_217
P087_218
P087_219
P087_220
P087_221
P087_222
P087_223
P087_224
P087_225
P087_226
P087_227
P087_228
P087_229
P087_230
P087_231
P087_232
P087_233
P087_234
P087_235
P087_236
P087_237
P087_238
P087_239
P087_240
P087_241
P087_242
P087_243
P087_244
P087_245
P087_246
P087_247
P087_248
P087_249
P087_250
P087_251
P087_252
P087_253
P087_254
P087_255
P087_256
P087_257
P087_258
P087_259
P087_260
P087_261
P087_262
P087_263
P087_264
P087_265
P087_266
P087_267
P087_268
P087_269
P087_270
P087_271
P087_272
P087_273
P087_274
P087_275
P087_276
P087_277
P087_278
P087_279
P087_280
P087_281
P087_282
P087_283
P087_284
P087_285
P087_286
P087_287
P087_288
P087_289
P087_290
P087_291
P087_292
P087_293
P087_294
P087_295
P087_296
P087_297
P087_298
P087_299
P087_300
P087_301
P087_302
P087_303
P087_304
P087_305
P087_306
P087_307
P087_308
P087_309
P087_310
P087_311
P087_312
P087_313
P087_314
P087_315
P087_316
P087_317
P087_318
P087_319
P087_320
P087_321
P087_322
P087_323
P087_324
P087_325
P087_326
P087_327
P087_328
P087_329
P087_330
P087_331
P087_332
P087_333
P087_334
P087_335
P087_336
P087_337
P087_338
P087_339
P087_340
P087_341
P087_342
P087_343
P087_344
P087_345
P087_346
P087_347
P087_348
P087_349
P087_350
P087_351
P087_352
P087_353
P087_354
P087_355
P087_356
Relevant Documentation:
Excerpt from: Social Explorer, U.S. Census Bureau; Census of Population and Housing, 1990: Summary Tape File 3 on CD-ROM [machine-readable data files] / prepared by the Bureau of the Census. Washington: The Bureau [producer and distributor], 1991.
 
Race
The data on race were derived from answers to questionnaire item 4, which was asked of all persons. The concept of race as used by the Census Bureau reflects self-identification; it does not denote any clear-cut scientific definition of biological stock. The data for race represent self-classification by people according to the race with which they most closely identify. Furthermore, it is recognized that the categories of the race item include both racial and national origin or socio-cultural groups.

During direct interviews conducted by enumerators, if a person could not provide a single response to the race question, he or she was asked to select, based on self-identification, the group which best described his or her racial identity. If a person could not provide a single race response, the race of the mother was used. If a single race response could not be provided for the person's mother, the first race reported by the person was used. In all cases where occupied housing units, households, or families are classified by race, the race of the householder was used.

The racial classification used by the Census Bureau generally adheres to the guidelines in Federal Statistical Directive No. 15, issued by the Office of Management and Budget, which provides standards on ethnic and racial categories for statistical reporting to be used by all Federal agencies. The racial categories used in the 1990 census data products are provided below.

Includes persons who indicated their race as "White" or reported entries such as Canadian, German, Italian, Lebanese, Near Easterner, Arab, or Polish.

Includes persons who indicated their race as "Black or Negro" or reported entries such as African American, Afro-American, Black Puerto Rican, Jamaican, Nigerian, West Indian, or Haitian.

American Indian, Eskimo, or Aleut
Includes persons who classified themselves as such in one of the specific race categories identified below.

American Indian
Includes persons who indicated their race as "American Indian," entered the name of an Indian tribe, or reported such entries as Canadian Indian, French-American Indian, or Spanish-American Indian.

American Indian Tribe
Persons who identified themselves as American Indian were asked to report their enrolled or principal tribe. Therefore, tribal data in tabulations reflect the written tribal entries reported on the questionnaires. Some of the entries (for example, Iroquois, Sioux, Colorado River, and Flathead) represent nations or reservations.
The information on tribe is based on self-identification and therefore does not reflect any designation of Federally- or State-recognized tribe. Information on American Indian tribes is presented in summary tape files and special data products. The information is derived from the American Indian Detailed Tribal Classification List for the 1990 census. The classification list represents all tribes, bands, and clans that had a specified number of American Indians reported on the census questionnaire.

Eskimo
Includes persons who indicated their race as "Eskimo" or reported entries such as Arctic Slope, Inupiat, and Yupik.

Includes persons who indicated their race as "Aleut" or reported entries such as Alutiiq, Egegik, and Pribilovian.

Asian or Pacific Islander
Includes persons who reported in one of the Asian or Pacific Islander groups listed on the questionnaire or who provided write-in responses such as Thai, Nepali, or Tongan. A more detailed listing of the groups comprising the Asian or Pacific Islander population is presented in figure 2 below. In some data products, information is presented separately for the Asian population and the Pacific Islander population.

Includes "Chinese," "Filipino," "Japanese," "Asian Indian," "Korean," "Vietnamese," and "Other Asian." In some tables, "Other Asian" may not be shown separately, but is included in the total Asian population.

Chinese
Includes persons who indicated their race as "Chinese" or who identified themselves as Cantonese, Tibetan, or Chinese American. In standard census reports, persons who reported as "Taiwanese" or "Formosan" are included here with Chinese. In special reports on the Asian or Pacific Islander population, information on persons who identified themselves as Taiwanese are shown separately.

Filipino
Includes persons who indicated their race as "Filipino" or reported entries such as Philipino, Philipine, or Filipino American.

Japanese
Includes persons who indicated their race as "Japanese" and persons who identified themselves as Nipponese or Japanese American.

Asian Indian
Includes persons who indicated their race as "Asian Indian" and persons who identified themselves as Bengalese, Bharat, Dravidian, East Indian, or Goanese.

Korean
Includes persons who indicated their race as "Korean" and persons who identified themselves as Korean American.

Vietnamese
Includes persons who indicated their race as "Vietnamese" and persons who identified themselves as Vietnamese American.

Cambodian
Includes persons who provided a write-in response such as Cambodian or Cambodia.
Includes persons who provided a write-in response such as Hmong, Laohmong, or Mong.
Laotian
Includes persons who provided a write-in response such as Laotian, Laos, or Lao.
Includes persons who provided a write-in response such as Thai, Thailand, or Siamese.
Other Asian
Includes persons who provided a write-in response of Bangladeshi, Burmese, Indonesian, Pakistani, Sri Lankan, Amerasian, or Eurasian. See figure 2 for other groups comprising "Other Asian."
Pacific Islander
Includes persons who indicated their race as "Pacific Islander" by classifying themselves into one of the following groups or identifying themselves as one of the Pacific Islander cultural groups of Polynesian, Micronesian, or Melanesian.

Hawaiian
Includes persons who indicated their race as "Hawaiian" as well as persons who identified themselves as Part Hawaiian or Native Hawaiian. Samoan--Includes persons who indicated their race as "Samoan" or persons who identified themselves as American Samoan or Western Samoan.

Guamanian
Includes persons who indicated their race as "Guamanian" or persons who identified themselves as Chamorro or Guam. Other Pacific Islander--Includes persons who provided a write-in response of a Pacific Islander group such as Tahitian, Northern Mariana Islander, Palauan, Fijian, or a cultural group such as Polynesian, Micronesian, or Melanesian. See figure 2 for other groups comprising "Other Pacific Islander."

Other Race
Includes all other persons not included in the "White," "Black," "American Indian, Eskimo, or Aleut," and the "Asian or Pacific Islander" race categories described above. Persons reporting in the "Other race" category and providing write-in entries such as multiracial, multiethnic, mixed, interracial, Wesort, or a Spanish/Hispanic origin group (such as Mexican, Cuban, or Puerto Rican) are included here.

Written entries to three categories on the race item--"Indian (Amer.)," "Other Asian or Pacific Islander (API)," and "Other race"--were reviewed, edited, and coded by subject matter specialists. (For more information on the coding operation, see the section below that discusses "Comparability.")

The written entries under "Indian (Amer.)" and "Other Asian or Pacific Islander (API)" were reviewed and coded during 100-percent processing of the 1990 census questionnaires. A substantial portion of the entries for the "Other race" category also were reviewed, edited, and coded during the 100-percent processing. The remaining entries under "Other race" underwent review and coding during sample processing. Most of the written entries reviewed and coded during sample processing were those indicating Hispanic origin such as Mexican, Cuban, or Puerto Rican.

If the race entry for a member of a household was missing on the questionnaire, race was assigned based upon the reported entries of race by other household members using specific rules of precedence of household relationship. For example, if race was missing for the daughter of the householder, then the race of her mother (as female householder or female spouse) would be assigned. If there was no female householder or spouse in the household, the daughter would be assigned her father's (male householder) race. If race was not reported for anyone in the household, the race of a householder in a previously processed household was assigned. This procedure is a variation of the general imputation procedures described in Appendix C, Accuracy of the Data.

Limitation of the Data
In the 1980 census, a relatively high proportion (20 percent) of American Indians did not report any tribal entry in the race item. Evaluation of the pre-census tests indicated that changes made for the 1990 race item should improve the reporting of tribes in the rural areas (especially on reservations) for the 1990 census. The results for urban areas were inconclusive. Also, the precensus tests indicated that there may be overreporting of the Cherokee tribe. An evaluation of 1980 census data showed overreporting of Cherokee in urban areas or areas where the number of American Indians was sparse.

In the 1990 census, respondents sometimes did not fill in a circle or filled the "Other race" circle and wrote in a response, such as Arab, Polish, or African American in the shared write-in box for "Other race" and "Other API" responses. During the automated coding process, these responses were edited and assigned to the appropriate racial designation. Also, some Hispanic origin persons did not fill in a circle, but provided entries such as Mexican or Puerto Rican. These persons were classified in the "Other race" category during the coding and editing process. There may be some minor differences between sample data and 100- percent data because sample processing included additional edits not included in the 100-percent processing.

Figure 2. Asian or Pacific Islander Groups Reported in the 1990 Census
Asian Pacific Islander
Chinese Hawaiian
Filipino Samoan
Japanese Guamanian
Asian Indian Other Pacific Islander[1]
Korean   Carolinian
Vietnamese   Fijian
Cambodian   Kosraean [3]
Hmong   Melanesian
Laotian   Micronesian [3]
Thai   Northern Mariana Islander
Other Asian [1]   Palauan
  Bangladeshi   Papua Now Guinean
  Bhutanese   Ponapean (Pohnpeian)
  Borneo   Polynesian
  Burmese   Solomon Islander
  Celebesian   Tahitian
  Ceram   Tarawa Islander
  Indochinese   Tokelauan
  Indonesian   Tongan
  Iwo-Jiman   Trukese (Chuukese)
  Javanese   Yapese
  Malayan   Pacific Islander, not speclied
  Maldivian
  Nepali
  Okinawan
  Pakistani
  Sikkim
  Singaporean
  Sri Lankan
  Sumatran
  Asian, not specified


(1)In some data products, specific groups listed under "Other Asian" or "Other Pacific Islander" are shown separately. Groups not shown are tabulated as "All other Asian" or "All other Pacific Islander," respectively.
(2)Includes entries such as Asian American, Asian, Asiatic, Amerasian, and Eurasian.
(3)Polynesian, Micronesian, and Melanesian are Pacific Islander cultural groups.

Comparability
Differences between the 1990 census and earlier censuses affect the comparability of data for certain racial groups and American Indian tribes. The 1990 census was the first census to undertake, on a 100- percent basis, an automated review, edit, and coding operation for written responses to the race item. The automated coding system used in the 1990 census greatly reduced the potential for error associated with a clerical review. Specialists with a thorough knowledge of the race subject matter reviewed, edited, coded, and resolved inconsistent or incomplete responses. In the 1980 census, there was only a limited clerical review of the race responses on the 100-percent forms with a full clerical review conducted only on the sample questionnaires.

Another major difference between the 1990 and preceding censuses is the handling of the write-in responses for the Asian or Pacific Islander populations. In addition to the nine Asian or Pacific Islander categories shown on the questionnaire under the spanner "Asian or Pacific Islander (API)," the 1990 census race item provided a new residual category, "Other API," for Asian or Pacific Islander persons who did not report in one of the listed Asian or Pacific Islander groups. During the coding operation, write-in responses for "Other API" were reviewed, coded, and assigned to the appropriate classification. For example, in 1990, a write-in entry of Laotian, Thai, or Javanese is classified as "Other Asian," while a write-in entry of Tongan or Fijian is classified as "Other Pacific Islander." In the 1990 census, these persons were able to identify as "Other API" in both the 100-percent and sample operations.

In the 1980 census, the nine Asian or Pacific Islander groups were also listed separately. However, persons not belonging to these nine groups wrote in their specific racial group under the "Other" race category. Persons with a written entry such as Laotian, Thai, or Tongan, were tabulated and published as "Other race" in the 100- percent processing operation in 1980, but were reclassified as "Other Asian and Pacific Islander" in 1980 sample tabulations. In 1980 special reports on the Asian or Pacific Islander populations, data were shown separately for "Other Asian" and "Other Pacific Islander."

The 1970 questionnaire did not have separate race categories for Asian Indian, Vietnamese, Samoan, and Guamanian. These persons indicated their race in the "Other" category and later, through the editing process, were assigned to a specific group. For example, in 1970, Asian Indians were reclassified as "White," while Vietnamese, Guamanians, and Samoans were included in the "Other" category.

Another difference between 1990 and preceding censuses is the approach taken when persons of Spanish/Hispanic origin did not report in a specific race category but reported as "Other race" or "Other." These persons commonly provided a write-in entry such as Mexican, Venezuelan, or Latino. In the 1990 and 1980 censuses, these entries remained in the "Other race" or "Other" category, respectively. In the 1970 census, most of these persons were included in the "White" category.

Excerpt from: Social Explorer, U.S. Census Bureau; Census of Population and Housing, 1990: Summary Tape File 3 on CD-ROM [machine-readable data files] / prepared by the Bureau of the Census. Washington: The Bureau [producer and distributor], 1991.
 
Householder
The data on relationship to householder were derived from answers to questionnaire item 2, which was asked of all persons in housing units. One person in each household is designated as the householder. In most cases, this is the person, or one of the persons, in whose name the home is owned, being bought, or rented and who is listed in column 1 of the census questionnaire. If there is no such person in the household, any adult household member 15 years old and over could be designated as the householder.

Households are classified by type according to the sex of the householder and the presence of relatives. Two types of householders are distinguished: a family householder and a nonfamily householder. A family householder is a householder living with one or more persons related to him or her by birth, marriage, or adoption. The householder and all persons in the household related to him or her are family members. A nonfamily householder is a householder living alone or with nonrelatives only.

Excerpt from: Social Explorer, U.S. Census Bureau; Census of Population and Housing, 1990: Summary Tape File 3 on CD-ROM [machine-readable data files] / prepared by the Bureau of the Census. Washington: The Bureau [producer and distributor], 1991.
 
Age
The data on age were derived from answers to questionnaire item 5, which was asked of all persons. The age classification is based on the age of the person in complete years as of April 1, 1990. The age response in question 5a was used normally to represent a person's age. However, when the age response was unacceptable or unavailable, a person's age was derived from an acceptable year-of-birth response in question 5b.

Data on age are used to determine the applicability of other questions for a person and to classify other characteristics in census tabulations. Age data are needed to interpret most social and economic characteristics used to plan and examine many programs and policies. Therefore, age is tabulated by single years of age and by many different groupings, such as 5-year age groups.

Some tabulations are shown by the age of the householder. These data were derived from the age responses for each householder. (For more information on householder, see the discussion under "Household Type and Relationship.")

Median Age
This measure divides the age distribution into two equal parts: one-half of the cases falling below the median value and one-half above the value. Generally, median age is computed on the basis of more detailed age intervals than are shown in some census publications; thus, a median based on a less detailed distribution may differ slightly from a corresponding median for the same population based on a more detailed distribution. (For more information on medians, see the discussion under "Derived Measures.")

Limitation of the Data
Counts in 1970 and 1980 for persons 100 years old and over were substantially overstated. Improvements were made in the questionnaire design, in the allocation procedures, and to the respondent instruction guide to attempt to minimize this problem for the 1990 census.

Review of detailed 1990 census information indicated that respondents tended to provide their age as of the date of completion of the questionnaire, not their age as of April 1, 1990. In addition, there may have been a tendency for respondents to round their age up if they were close to having a birthday. It is likely that approximately 10 percent of persons in most age groups are actually 1 year younger. For most single years of age, the misstatements are largely offsetting. The problem is most pronounced at age 0 because persons lost to age 1 may not have been fully offset by the inclusion of babies born after April 1, 1990, and because there may have been more rounding up to age 1 to avoid reporting age as 0 years. (Age in complete months was not collected for infants under age 1.)

The reporting of age 1 year older than age on April 1, 1990, is likely to have been greater in areas where the census data were collected later in 1990. The magnitude of this problem was much less in the three previous censuses where age was typically derived from respondent data on year of birth and quarter of birth. (For more information on the design of the age question, see the section below that discusses "Comparability.")

Comparability
Age data have been collected in every census. For the first time since 1950, the 1990 data are not available by quarter year of age. This change was made so that coded information could be obtained for both age and year of birth. In each census since 1940, the age of a person was assigned when it was not reported. In censuses before 1940, with the exception of 1880, persons of unknown age were shown as a separate category. Since 1960, assignment of unknown age has been performed by a general procedure described as "imputation." The specific procedures for imputing age have been different in each census. (For more information on imputation, see Appendix C, Accuracy of the Data.)

Excerpt from: Social Explorer, U.S. Census Bureau; Census of Population and Housing, 1990: Summary Tape File 3 on CD-ROM [machine-readable data files] / prepared by the Bureau of the Census. Washington: The Bureau [producer and distributor], 1991.
 
Income of Households
Includes the income of the householder and all other persons 15 years old and over in the household, whether related to the householder or not. Because many households consist of only one person, average household income is usually less than average family income.