Newton Iowa ZIP Codes

Newton holds a single ZIP code.

Every ZIP code in Newton

The complete list of Newton, Iowa ZIP codes with the county each falls in.
ZIP code	County
50208	Jasper 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We do not publish a delivery type (standard, PO box, unique) or a neighbourhood for each ZIP.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 Newton codes above are listed without a column we would have to invent.

Scope every ZIP code recorded for Newton. Source GeoNames US postal codes (2026-07 postal dump) and Census 2024 county Gazetteer (2024 Gazetteer). Updated 15 July 2026. ZIP codes are delivery-route groupings, not areas; the boundaries implied by any ZIP map are approximations.

How these codes cluster

Every Newton ZIP code begins 502. Those first three digits identify the sectional center facility that processes mail for this part of Iowa. Statewide that range covers 65 ZIP codes, so Newton accounts for 2% of it.

Every Iowa ZIP prefix and the region it covers →

Area codes covering Newton

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 Newton occupies.

641 Area code 641

Newton Iowa area codes in full →

Where Newton's ZIP codes sit

Each point is one Newton ZIP code, plotted from its record coordinates.

Reference points and footprint
Not an official NANPA boundary
Not a USPS delivery area

Cities near Newton

The closest places to Newton with their own ZIP code list, nearest first.
City	Distance	ZIP codes
Kellogg Iowa ZIP codes	7.0 mi	1 ZIP code
Reasnor Iowa ZIP codes	8.2 mi	1 ZIP code
Colfax Iowa ZIP codes	10 mi	1 ZIP code
Baxter Iowa ZIP codes	11 mi	1 ZIP code
Prairie City Iowa ZIP codes	12 mi	1 ZIP code
Monroe Iowa ZIP codes	13 mi	1 ZIP code
Sully Iowa ZIP codes	13 mi	1 ZIP code
Mingo Iowa ZIP codes	13 mi	1 ZIP code

Straight-line distance between place reference points, not driving distance.