Field Size ----- ---- ZIP 5 ZIP code PLACE 28 Name associated with the ZIP STATE 2 State where PLACE is located FROM 6 Year-month (YYYYMM) the PLACE was first associated with the ZIP TO 6 Year-month (YYYYMM) the PLACE was last associated with the ZIP CR 1 Carriage return LF 1 Line feedFor a given date range in a record, the PLACE as listed was associated with that ZIP code. Outside the date range either no data is available, or the PLACE or STATE fields changed as indicated by some other record, or the ZIP code was not assigned and no other record applies.
Data before October 1989 and after December 2014 are not available, so the proper content of records before and after those dates can't be reliably determined. WARNING: ZIP data changes monthly, and official ZIP records include additional important flags not listed here. WARNING: Determining the proper ZIP for a city, or vice versa, requires considering the address.
Records with Yellow (Y) dates are probably correct but may be wrong by a month or two. Green (G) dates are accurate. No data is available for Red (R) months, so they are never used as beginning or ending dates, and date ranges assume data did not change in those months.
Field Size ----- ---- ZIP 5 ZIP code PO 28 Post office the ZIP belongs to STATE 2 State where post office is located FROM 6 Year-month (YYYYMM) the post office was first associated with the ZIP TO 6 Year-month (YYYYMM) the post office was last associated with the ZIP CR 1 Carriage return LF 1 Line feedYou may sell, modify, and redistribute either file as you wish. However, you must prominently link to this page as the source of the data.