First three digits · Missouri
ZIP Codes Starting with
32 ZIP codes start with 639, sorted at the St Louis, MO (SCF 630) sectional center (USPS labeling list L005, effective October 1, 2026) in Missouri: 29 residential ZIP codes across 6 counties and 3 PO Box or single-organization codes (Census 2020 ZCTAs and GeoNames postal codes, October 2026).
What do the digits 639 mean?
The first digit, 6, is one of ten national areas (Illinois, Kansas, Missouri and Nebraska). The first three, 639, route mail to a sectional center: USPS labeling list L005 (effective October 1, 2026) sends letters for 639 to the St Louis, MO (SCF 630) facility. The last two digits pick the delivery area. By residents, the largest town names among the 639 ZIP codes are Poplar Bluff, Doniphan, Piedmont, Puxico, Campbell and Ellsinore.
The same facility sorts 12 prefixes, 714 ZIP codes in all: 620, 622, 628, 629, 630, 631, 633, 634, 636, 637, 638, 639.
Where are the 639 ZIP codes?
Source: U.S. Census Bureau, 2020 ZCTA cartographic boundaries; ACS 2020-2024 5-year estimates (B19013).
All ZIP codes starting with 639
| County | ||||||
|---|---|---|---|---|---|---|
| 63901 | Poplar Bluff | Butler County | 35,324 | 124 | $51k | $152k |
| 63902 | Poplar Bluff | Butler County | PO Box or unique | – | – | – |
| 63931 | Briar | Ripley County | PO Box or unique | – | – | – |
| 63932 | Broseley | Butler County | 848 | 17 | $47k | $62k |
| 63933 | Campbell | Dunklin County | 3,049 | 30 | $56k | $102k |
| 63934 | Clubb | Wayne County | 31 | 7 | – | – |
| 63935 | Doniphan | Ripley County | 7,931 | 17 | $43k | $125k |
| 63936 | Dudley | Stoddard County | 494 | 6 | $52k | $146k |
| 63937 | Ellsinore | Carter County | 2,643 | 16 | $62k | $223k |
| 63938 | Fagus | Butler County | PO Box or unique | – | – | – |
| 63939 | Fairdealing | Ripley County | 963 | 18 | $44k | $97k |
| 63940 | Fisk | Butler County | 1,326 | 24 | $53k | $144k |
| 63941 | Fremont | Carter County | 221 | 2 | $29k | – |
| 63942 | Gatewood | Ripley County | 490 | 6 | $47k | $132k |
| 63943 | Grandin | Carter County | 823 | 10 | $40k | $72k |
| 63944 | Greenville | Wayne County | 1,332 | 8 | $58k | $136k |
| 63945 | Harviell | Butler County | 928 | 30 | $44k | $146k |
| 63950 | Lodi | Wayne County | no residents | 0 | – | – |
| 63951 | Lowndes | Wayne County | 200 | 6 | $27k | – |
| 63952 | Mill Spring | Wayne County | 284 | 5 | $42k | – |
| 63953 | Naylor | Ripley County | 787 | 14 | $33k | $88k |
| 63954 | Neelyville | Butler County | 954 | 9 | $40k | $95k |
| 63955 | Oxly | Ripley County | 64 | 9 | $48k | $116k |
| 63956 | Patterson | Wayne County | 770 | 11 | $61k | $176k |
| 63957 | Piedmont | Wayne County | 5,144 | 25 | $44k | $119k |
| 63960 | Puxico | Stoddard County | 3,204 | 28 | $58k | $147k |
| 63961 | Qulin | Butler County | 1,600 | 18 | $39k | $90k |
| 63962 | Rombauer | Butler County | no residents | 0 | – | – |
| 63964 | Silva | Wayne County | 733 | 11 | $42k | – |
| 63965 | Van Buren | Carter County | 2,607 | 12 | $38k | $156k |
| 63966 | Wappapello | Wayne County | 2,110 | 35 | $60k | $110k |
| 63967 | Williamsville | Wayne County | 1,313 | 11 | $42k | $104k |
Source: U.S. Census Bureau, ACS 2020-2024 5-year estimates; GeoNames postal codes (CC BY 4.0) for codes without a residential area.