New Melle Missouri ZIP Codes

New Melle holds a single ZIP code.

Every ZIP code in New Melle

The complete list of New Melle, Missouri ZIP codes with the county each falls in.
ZIP codeCounty
63365St. Charles 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We do not publish a delivery type (standard, PO box, unique) or a neighbourhood for each ZIP.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 Melle codes above are listed without a column we would have to invent.

Scope every ZIP code recorded for New Melle. 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 Melle ZIP code begins 633. Those first three digits identify the sectional center facility that processes mail for this part of Missouri. Statewide that range covers 51 ZIP codes, so New Melle accounts for 2% of it.

Every Missouri ZIP prefix and the region it covers →

Area codes covering New Melle

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 Melle occupies.

New Melle Missouri area codes in full →

Where New Melle's ZIP codes sit

Each point is one New Melle ZIP code, plotted from its record coordinates.
  • Reference points and footprint
  • Not an official NANPA boundary
  • Not a USPS delivery area

Cities near New Melle

The closest places to New Melle with their own ZIP code list, nearest first.
CityDistanceZIP codes
Wentzville Missouri ZIP codes6.8 mi1 ZIP code
Foristell Missouri ZIP codes7.8 mi1 ZIP code
O Fallon Missouri ZIP codes9.2 mi2 ZIP codes
Augusta Missouri ZIP codes10 mi1 ZIP code
Marthasville Missouri ZIP codes11 mi1 ZIP code
Wright City Missouri ZIP codes11 mi1 ZIP code
Cottleville Missouri ZIP codes12 mi1 ZIP code
Washington Missouri ZIP codes14 mi1 ZIP code

Straight-line distance between place reference points, not driving distance. Where a place has no Census Gazetteer point, its postal centroid is used instead.