Postal reference / United States
03305Concord, New Hampshire
ZIP code 03305 is a United States postal code for Concord, New Hampshire. Its county association is Merrimack County. The map reference point is at 43.2134, -71.5172.
- State / territory
- New Hampshire
- Recorded place name
- Concord
- County association
- Merrimack
- Estimated coordinate
- 43.2134, -71.5172
View on OpenStreetMap - ZIP prefix
- 033 · 6 ZIP codes share it
- Data source
- GeoNames postal reference, snapshot September 26, 2026
GeoNames reference data. County associations may not include every intersecting county, place names are postal names rather than legal boundaries, and coordinates are approximate. This is not address validation.
Need the last four digits?
ZIP+4 depends on the full delivery address. A five-digit code alone cannot determine its extension.
Find ZIP+4Explore New Hampshire
Browse the other 280 ZIP codes recorded for New Hampshire, sorted by code with place and county.
New Hampshire directoryOther ZIP codes in Concord, NH
Concord has 4 ZIP codes in the reference dataset.
Nearby ZIP code reference points
| ZIP code | Place | State | County association | Miles |
|---|---|---|---|---|
| 03301 | Concord | NH | Merrimack | 0.6 |
| 03304 | Bow | NH | Merrimack | 5.3 |
| 03258 | Chichester | NH | Grafton | 5.8 |
| 03275 | Suncook | NH | Merrimack | 6.2 |
| 03307 | Loudon | NH | Merrimack | 7.7 |
| 03234 | Epsom | NH | Merrimack | 8.2 |
| 03303 | Concord | NH | Merrimack | 8.6 |
| 03229 | Contoocook | NH | Merrimack | 9.1 |
Straight-line distance between reference points. Nearby points do not prove that ZIP areas touch.
Verify a mailing address
For mailing, confirm the complete street or PO Box address with USPS. A place record does not confirm delivery eligibility or the ZIP+4 extension.
Open USPS address lookup