More AHS Data and Publications

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CAUTIONS

After downloading the data, check this site periodically for notice of errors and revisions.

1997

Copies of the 1997 national file created before 7/98 have preliminary, unweighted data for about 10 percent of the cases in the 1997 American Housing Survey national sample. The data are subject to revision and should not be considered final. Some edits and allocations are not complete, and data are missing for some of the variables. There are known problems that have not been completely corrected as well as problems not yet discovered. No conclusions or inferences should be drawn from the data. Some data are suppressed, topcoded, or recoded to ensure that the confidentiality of individual responses is protected.

1996

Copies of the 1996 Metropolitan created before 3/20/98 identify central cities (METRO=1) only in Cleveland, Sacramento and St. Louis. Later files now show the central cities in all areas.

Copies of the 1996 Metropolitan created before 2/12/98 have NUNITS=0 (& very rarely 2) when it should be 1 or 99. However NUNIT2 was correct.

Copies of the 1996 Metropolitan created before 1/26/98 file have the code 5775 in fields SMSA and PMSA, for all cases in the Sacramento area. This is the code for Oakland, but the data do come from Sacramento (correct code: 6920). Oakland will be surveyed in 1998. The revised file has code 6920.

1995

Copies of the 1995 National Data created before 5/9/97 have some interviews (with a total weight of about 1.8 million homes) misclassified as Suburb instead of Central City. Other analyses are not significantly affected, even Metro/Nonmetro or Rural/Urban. The revised tape shows 33.5 million units in Central Cities (where the variable metro=1).

Copies of the 1995 Metropolitan Data created before 6/20/97 have errors in the amount of income: zero income is shown for many households where income was not answered (so the file shows many more low income people than is correct). Missing income is filled in by allocation in later versions of the file, as described on page xiii of Codebook vol. 1, mentioned above.

Copies of the 1995 National Data created before 7/21/97 wrongly show $0 for housing costs of most subsidized units with "other federal subsidy" or "state or local subsidy." Thus too many units appear with $0 housing costs (4.2 million was wrong; 2.3 million is correct), and too few units with other costs. The revised file also gives more detail on lot sizes over 10 acres and identifies more suburban cases in the 6 areas listed above (see revised Codebook Vol. 2). The publication is being reissued.

The 1995 National Data include extra cases to allow separate analyses of 6 Metropolitan Areas: Chicago, Detroit, Los Angeles, New York, Northern NJ, and Philadelphia. These 6 broad areas involve 18 SMSA codes, which cover all cases except: Joliet City outside Chicago, and non-urbanized areas in Los Angeles and in Orange County NY. See page 6 of Codebook vol. 2 for the codes (ignore 5960-Orlando, listed by mistake) and comments on weighting.