Andover Illinois ZIP Codes
Andover holds a single ZIP code.
Every ZIP code in Andover
| ZIP code | County |
|---|---|
| 61233 | Henry 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We do not publish a delivery type (standard, PO box, unique) or a neighbourhood for each ZIP.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 Andover codes above are listed without a column we would have to invent.
Scope every ZIP code recorded for Andover. 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 Andover 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 Andover accounts for 2% of it.
Every Illinois ZIP prefix and the region it covers →
Area codes covering Andover
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 Andover occupies.
Andover Illinois area codes in full →
Where Andover's ZIP codes sit
- Reference points and footprint
- Not an official NANPA boundary
- Not a USPS delivery area
Cities near Andover
| City | Distance | ZIP codes |
|---|---|---|
| Cambridge Illinois ZIP codes | 5.2 mi | 1 ZIP code |
| Orion Illinois ZIP codes | 5.9 mi | 1 ZIP code |
| Woodhull Illinois ZIP codes | 8.2 mi | 1 ZIP code |
| Alpha Illinois ZIP codes | 8.5 mi | 1 ZIP code |
| Sherrard Illinois ZIP codes | 11 mi | 1 ZIP code |
| Bishop Hill Illinois ZIP codes | 11 mi | 1 ZIP code |
| Colona Illinois ZIP codes | 13 mi | 1 ZIP code |
| Coal Valley Illinois ZIP codes | 13 mi | 1 ZIP code |
Straight-line distance between place reference points, not driving distance.