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See Independent City (below)

Aliens admitted for legal permanent residence in the United States.

Immigration statistics are prepared by the Immigration and Naturalization Service, Department of Justice, from entry visas and change of immigration forms.

Related term:
Foreign born

When information is missing or inconsistent, the Census Bureau uses a method called imputation to assign values. Imputation relies on the statistical principle of "homogeneity," or the tendency of households within a small geographic area to be similar in most characteristics. For example, the value of "rented" is likely to be imputed for a housing unit not reported on owner/renter status in a neighborhood with multi-units or apartments where other respondents reported "rented" on the census questionnaire.

"Total income" is the sum of the amounts reported separately for wages, salary, commissions, bonuses, or tips; self-employment income from own nonfarm or farm businesses, including proprietorships and partnerships; interest, dividends, net rental income, royalty income, or income from estates and trusts; Social Security or Railroad Retirement income; Supplemental Security Income (SSI); any public assistance or welfare payments from the state or local welfare office; retirement, survivor, or disability pensions; and any other sources of income received regularly such as Veterans' (VA) payments, unemployment compensation, child support, or alimony.

Related term:

Incorporated place
A type of governmental unit incorporated under state law as a city, town (except the New England states, New York, and Wisconsin), borough (except in Alaska and New York), or village and having legally prescribed limits, powers, and functions.

Related terms:
Census designated place (CDP), Place

Independent City (IC)
An incorporated place that is a primary division of a state and legally not part of any county. The Census Bureau treats an independent city as both a county equivalent and county subdivision for data tabulation purposes.

Related term:
County and equivalent entity

Industrial Classification
The Economic Census classifies establishments according to the new North American Industry Classification System (NAICS). NAICS codes replace the Standard Industrial Classification (SIC) codes used in previous censuses. NAICS classifies industries using 2-, 3-, 4-, 5-, and 6- digit levels of detail. 2-digit codes represent sectors, the broadest classifications. 6-digit codes represent individual industries in the U.S.

Related terms:
Economic census, North American Industry Classification System (NAICS)

Industry (economic)
In the 1997 economic census data, U.S. industries are classified using a 5- or 6- digit NAICS code. Industry groups are represented by classification using a 4 digit NAICS code.

Related term:
North American Industry Classification System (NAICS)

Industry (population data)
Information on industry relates to the kind of business conducted by a person's employing organization. For employed people the data refer to the person's job during the reference week. For those who worked at two or more jobs, the data refer to the job at which the person worked the greatest number of hours. Some examples of industrial groups shown in products include agriculture, forestry, and fisheries; construction; manufacturing; wholesale or retail trade; transportation and communication; personal, professional and entertainment services; and public administration.

Related terms:
Economic census, Employed

Industry Quick Report (IQR)
Data for this report are collected by the Economic Census. The report displays industry statistics for the United States by state.

Related term:
Economic census

Institutionalized population
People under formally authorized, supervised care or custody in institutions at the time of enumeration. Generally, restricted to the institution, under the care or supervision of trained staff, and classified as "patients" or "inmates."

Related terms:
Group quarters (GQ), Group quarters population, Noninstitutionalized population

Integrated Coverage Measurement (ICM)
The Integrated Coverage Measurement program was designed to permit statistically valid estimates of the proportion of the population missed using traditional census procedures and to identify persons incorrectly included in the initial phase of the Census 2000 Dress Rehearsal. The ICM program was designed to address irrefutable evidence produced from studies of previous censuses indicating that traditional census methods result in difficulties in counting people in certain demographic groups, specifically minorities and renters. ICM estimates were obtained using a three-step procedure: Dual System Estimation, Iterative Proportional Fitting, and Synthetic Estimation.

Related term:
Without Correction for ICM

Interpolation frequently is used in calculating medians or quartiles based on interval data and in approximating standard errors from tables. Linear interpolation is used to estimate values of a function between two known values. Pareto interpolation is an alternative to linear interpolation. In Pareto interpolation, the median is derived by interpolating between the logarithms of the upper and lower income limits of the median category. It is used by the Census Bureau in calculating median income within intervals wider than $2,500.

Island Areas
Islands included in Census 2000 are: U.S. Virgin Islands, Guam, the Commonwealth of the Northern Mariana Islands, and American Samoa. These were formerly called outlying areas.

https://allcountries.org/uscensus/ glossary_i.html

These tables are based on figures supplied by the United States Census Bureau, U.S. Department of Commerce, and they are subject to revision by the Census Bureau.

Copyright © 2006
Photius Coutsoukis and Information Technology Associates, all rights reserved.