First three digits · New Hampshire
ZIP Codes Starting with
29 ZIP codes start with 037, sorted at the White Riv Jct, VT (SCF 050) sectional center (USPS labeling list L005, effective October 1, 2026) in New Hampshire: 24 residential ZIP codes across 2 counties and 5 PO Box or single-organization codes (Census 2020 ZCTAs and GeoNames postal codes, October 2026).
What do the digits 037 mean?
The first digit, 0, is one of ten national areas (Connecticut, Massachusetts, Maine, New Hampshire, New Jersey, Puerto Rico, Rhode Island, Vermont, U.S. Virgin Islands and Armed Forces Europe). The first three, 037, route mail to a sectional center: USPS labeling list L005 (effective October 1, 2026) sends letters for 037 to the White Riv Jct, VT (SCF 050) facility. The last two digits pick the delivery area. By residents, the largest town names among the 037 ZIP codes are Claremont, Lebanon, Hanover, Newport, Enfield and Canaan.
The same facility sorts 10 prefixes, 263 ZIP codes in all: 035, 036, 037, 050, 051, 052, 053, 057, 058, 059.
Where are the 037 ZIP codes?
Source: U.S. Census Bureau, 2020 ZCTA cartographic boundaries; ACS 2020-2024 5-year estimates (B19013).
All ZIP codes starting with 037
| County | ||||||
|---|---|---|---|---|---|---|
| 03740 | Bath | Grafton County | 1,097 | 29 | $68k | $234k |
| 03741 | Canaan | Grafton County | 4,131 | 54 | $82k | $258k |
| 03743 | Claremont | Sullivan County | 13,704 | 232 | $60k | $207k |
| 03745 | Cornish | Sullivan County | 1,816 | 43 | $92k | $296k |
| 03746 | Cornish Flat | Sullivan County | PO Box or unique | – | – | – |
| 03748 | Enfield | Grafton County | 4,563 | 97 | $95k | $389k |
| 03749 | Enfield Center | Grafton County | PO Box or unique | – | – | – |
| 03750 | Etna | Grafton County | 1,116 | 71 | $250k+ | $881k |
| 03751 | Georges Mills | Sullivan County | 397 | 199 | – | – |
| 03752 | Goshen | Sullivan County | 1,042 | 47 | $70k | $256k |
| 03753 | Grantham | Sullivan County | 3,509 | 124 | $106k | $344k |
| 03754 | Guild | Sullivan County | PO Box or unique | – | – | – |
| 03755 | Hanover | Grafton County | 10,569 | 362 | $166k | $815k |
| 03756 | Lebanon | Grafton County | PO Box or unique | – | – | – |
| 03765 | Haverhill | Grafton County | 513 | 112 | $80k | $263k |
| 03766 | Lebanon | Grafton County | 11,195 | 350 | $101k | $396k |
| 03768 | Lyme | Grafton County | 1,710 | 32 | $134k | $645k |
| 03769 | Lyme Center | Grafton County | PO Box or unique | – | – | – |
| 03770 | Meriden | Sullivan County | 604 | 137 | $154k | $594k |
| 03771 | Monroe | Grafton County | 786 | 35 | $88k | $313k |
| 03773 | Newport | Sullivan County | 7,681 | 82 | $81k | $239k |
| 03774 | North Haverhill | Grafton County | 1,420 | 54 | $59k | $228k |
| 03777 | Orford | Grafton County | 1,295 | 28 | $93k | $272k |
| 03779 | Piermont | Grafton County | 868 | 23 | $80k | $342k |
| 03780 | Pike | Grafton County | 1,071 | 54 | $190k | $618k |
| 03781 | Plainfield | Sullivan County | 1,918 | 40 | $110k | $426k |
| 03782 | Sunapee | Sullivan County | 3,122 | 154 | $110k | $412k |
| 03784 | West Lebanon | Grafton County | 3,804 | 457 | $91k | $372k |
| 03785 | Woodsville | Grafton County | 2,018 | 32 | $58k | $244k |
Source: U.S. Census Bureau, ACS 2020-2024 5-year estimates; GeoNames postal codes (CC BY 4.0) for codes without a residential area.