Lake Delton Wisconsin ZIP Codes
Lake Delton holds a single ZIP code.
Every ZIP code in Lake Delton
| ZIP code | County |
|---|---|
| 53940 | Sauk 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We do not publish a delivery type (standard, PO box, unique) or a neighbourhood for each ZIP.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 Lake Delton codes above are listed without a column we would have to invent.
Scope every ZIP code recorded for Lake Delton. 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 Lake Delton ZIP code begins 539. Those first three digits identify the sectional center facility that processes mail for this part of Wisconsin. Statewide that range covers 51 ZIP codes, so Lake Delton accounts for 2% of it.
Every Wisconsin ZIP prefix and the region it covers →
Area codes covering Lake Delton
ZIP codes and area codes are separate systems — one routes mail, the other routes calls — and they do not share boundaries. The codes below serve the same ground Lake Delton occupies.
Lake Delton Wisconsin area codes in full →
Where Lake Delton's ZIP codes sit
- Reference points and footprint
- Not an official NANPA boundary
- Not a USPS delivery area
Cities near Lake Delton
| City | Distance | ZIP codes |
|---|---|---|
| Wisconsin Dells Wisconsin ZIP codes | 3.2 mi | 1 ZIP code |
| Baraboo Wisconsin ZIP codes | 8.9 mi | 1 ZIP code |
| Lyndon Station Wisconsin ZIP codes | 9.8 mi | 1 ZIP code |
| North Freedom Wisconsin ZIP codes | 9.9 mi | 1 ZIP code |
| Rock Springs Wisconsin ZIP codes | 11 mi | 1 ZIP code |
| Reedsburg Wisconsin ZIP codes | 11 mi | 2 ZIP codes |
| Portage Wisconsin ZIP codes | 16 mi | 1 ZIP code |
| Loganville Wisconsin ZIP codes | 17 mi | 1 ZIP code |
Straight-line distance between place reference points, not driving distance.