Newtown Missouri ZIP Codes
Newtown holds a single ZIP code.
Every ZIP code in Newtown
| ZIP code | County |
|---|---|
| 64667 | Sullivan 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We do not publish a delivery type (standard, PO box, unique) or a neighbourhood for each ZIP.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 Newtown codes above are listed without a column we would have to invent.
Scope every ZIP code recorded for Newtown. 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 Newtown ZIP code begins 646. Those first three digits identify the sectional center facility that processes mail for this part of Missouri. Statewide that range covers 55 ZIP codes, so Newtown accounts for 2% of it.
Every Missouri ZIP prefix and the region it covers →
Area codes covering Newtown
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 Newtown occupies.
Newtown Missouri area codes in full →
Where Newtown's ZIP codes sit
- Reference points and footprint
- Not an official NANPA boundary
- Not a USPS delivery area
Cities near Newtown
| City | Distance | ZIP codes |
|---|---|---|
| Harris Missouri ZIP codes | 4.8 mi | 1 ZIP code |
| Lucerne Missouri ZIP codes | 6.5 mi | 1 ZIP code |
| Powersville Missouri ZIP codes | 12 mi | 1 ZIP code |
| Pollock Missouri ZIP codes | 13 mi | 1 ZIP code |
| Princeton Missouri ZIP codes | 14 mi | 1 ZIP code |
| Mercer Missouri ZIP codes | 14 mi | 1 ZIP code |
| Milan Missouri ZIP codes | 16 mi | 1 ZIP code |
| Spickard Missouri ZIP codes | 16 mi | 1 ZIP code |
Straight-line distance between place reference points, not driving distance.