Rapids City Illinois ZIP Codes
Rapids City holds a single ZIP code.
Every ZIP code in Rapids City
| ZIP code | County |
|---|---|
| 61278 | Rock Island 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We do not publish a delivery type (standard, PO box, unique) or a neighbourhood for each ZIP.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 Rapids City codes above are listed without a column we would have to invent.
Scope every ZIP code recorded for Rapids City. 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 Rapids City ZIP code begins 612. Those first three digits identify the sectional center facility that processes mail for this part of Illinois. Statewide that range covers 47 ZIP codes, so Rapids City accounts for 2% of it.
Every Illinois ZIP prefix and the region it covers →
Area codes covering Rapids City
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 Rapids City occupies.
Rapids City Illinois area codes in full →
Where Rapids City's ZIP codes sit
- Reference points and footprint
- Not an official NANPA boundary
- Not a USPS delivery area
Cities near Rapids City
| City | Distance | ZIP codes |
|---|---|---|
| Port Byron Illinois ZIP codes | 3.2 mi | 1 ZIP code |
| Hampton Illinois ZIP codes | 3.6 mi | 1 ZIP code |
| East Moline Illinois ZIP codes | 4.8 mi | 1 ZIP code |
| Carbon Cliff Illinois ZIP codes | 6.2 mi | 1 ZIP code |
| Silvis Illinois ZIP codes | 6.7 mi | 1 ZIP code |
| Cordova Illinois ZIP codes | 6.9 mi | 1 ZIP code |
| Colona Illinois ZIP codes | 7.3 mi | 1 ZIP code |
| Hillsdale Illinois ZIP codes | 8.8 mi | 1 ZIP code |
Straight-line distance between place reference points, not driving distance.