Sullivan Wisconsin ZIP Codes
Sullivan holds a single ZIP code.
Every ZIP code in Sullivan
| ZIP code | County |
|---|---|
| 53178 | Jefferson 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We do not publish a delivery type (standard, PO box, unique) or a neighbourhood for each ZIP.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 Sullivan codes above are listed without a column we would have to invent.
Scope every ZIP code recorded for Sullivan. 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 Sullivan ZIP code begins 531. Those first three digits identify the sectional center facility that processes mail for this part of Wisconsin. Statewide that range covers 66 ZIP codes, so Sullivan accounts for 2% of it.
Every Wisconsin ZIP prefix and the region it covers →
Area codes covering Sullivan
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 Sullivan occupies.
Sullivan Wisconsin area codes in full →
Where Sullivan's ZIP codes sit
- Reference points and footprint
- Not an official NANPA boundary
- Not a USPS delivery area
Cities near Sullivan
| City | Distance | ZIP codes |
|---|---|---|
| Dousman Wisconsin ZIP codes | 6.1 mi | 1 ZIP code |
| Oconomowoc Wisconsin ZIP codes | 7.9 mi | 1 ZIP code |
| Palmyra Wisconsin ZIP codes | 9.1 mi | 1 ZIP code |
| Johnson Creek Wisconsin ZIP codes | 10 mi | 1 ZIP code |
| Jefferson Wisconsin ZIP codes | 11 mi | 1 ZIP code |
| Nashotah Wisconsin ZIP codes | 11 mi | 1 ZIP code |
| North Prairie Wisconsin ZIP codes | 11 mi | 1 ZIP code |
| Delafield Wisconsin ZIP codes | 11 mi | 1 ZIP code |
Straight-line distance between place reference points, not driving distance.