New Hartford Iowa ZIP Codes
New Hartford holds a single ZIP code.
Every ZIP code in New Hartford
| ZIP code | County |
|---|---|
| 50660 | Butler County |
We do not publish a delivery type (standard, PO box, unique) or a neighbourhood for each ZIP. USPS delivery-type products are licensed, and no clean-rights source maps ZIP codes to neighbourhoods — so the New Hartford codes above are listed without a column we would have to invent.
Scope every ZIP code recorded for New Hartford. Source GeoNames US postal codes (2026-07 postal dump) and Census 2024 county Gazetteer (2024 Gazetteer). Updated . ZIP codes are delivery-route groupings, not areas; the boundaries implied by any ZIP map are approximations.
How these codes cluster
Every New Hartford ZIP code begins 506. Those first three digits identify the sectional center facility that processes mail for this part of Iowa. Statewide that range covers 70 ZIP codes, so New Hartford accounts for 1% of it.
Every Iowa ZIP prefix and the region it covers →
Area codes covering New Hartford
ZIP codes and area codes are separate systems — one routes mail, the other routes calls — and they do not share boundaries. The code below serves the same ground New Hartford occupies.
New Hartford Iowa area codes in full →
Where New Hartford's ZIP codes sit
- Reference points and footprint
- Not an official NANPA boundary
- Not a USPS delivery area
Cities near New Hartford
| City | Distance | ZIP codes |
|---|---|---|
| Stout Iowa ZIP codes | 5.4 mi | 1 ZIP code |
| Dike Iowa ZIP codes | 7.2 mi | 1 ZIP code |
| Parkersburg Iowa ZIP codes | 8.0 mi | 1 ZIP code |
| Cedar Falls Iowa ZIP codes | 9.2 mi | 2 ZIP codes |
| Janesville Iowa ZIP codes | 9.7 mi | 1 ZIP code |
| Shell Rock Iowa ZIP codes | 10 mi | 1 ZIP code |
| Hudson Iowa ZIP codes | 13 mi | 1 ZIP code |
| Waverly Iowa ZIP codes | 13 mi | 1 ZIP code |
Straight-line distance between place reference points, not driving distance.