Table 4 Percentages of addresses geocoded to 1990 census and then assigned to a 1960, 1970, and 1980 census tract, the LC-SES study, 2001–2002. 1Jackson, MS & Washington Co., MD print files of U.S. Bureau of the Census housing data for 1960 [34]. 2Includes some addresses sent to vendor but not assigned a latitude and longitude.
% of All Addresses | |
|---|---|
Street addresses for 1960 (N = 8200) | |
Sent to geocoding vendor | 89 |
Vendor assigned latitude and longitude | 61 |
1960 tract assigned using overlay/comparability file | 26 |
1960 Assigned area by overlay (non tract area)1 | 16 |
1970 tract Assigned (non tract area-1960) | 16 |
1960 tract Assigned manually2 | 8 |
Total addresses assigned tract | 66 |
Street addresses for 1970 (N = 12671) | |
Sent to geocoding vendor | 93 |
Vendor assigned latitude and longitude | 71 |
1970 tract assigned using overlay | 69 |
1970 tract assigned manually2 | 7 |
Total addresses assigned tract | 76 |
Street addresses for 1980 (N = 3277) | |
Sent to geocoding vendor | 94 |
Vendor assigned latitude and longitude | 81 |
1970 tract assigned using overlay | 80 |
1970 tract assigned manually2 | 5 |
Total addresses assigned tract | 85 |