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Andover, IL
Village in Henry County, Illinois. ZIP codes: 61233.
Population
434
Land area
1sq mi
People per sq mi
438
ZIP codes
1
Andover and its ZIP codes
Andover at a glance
- Andover is 92% denser than Illinois as a whole.
Local data for Andover, IL
Counts from official public data
Economy and federal money
Jobs, pay, income and spending are for Henry County. PPP loans are for Andover.
Unemployment rate
4.1%
Sep 2026, -0.9 pts in a year
Average annual pay
$52,235
13,972 jobs, 2025
Income per person
$60,048
BEA, 2024
Federal spending
$336M
FY 2026, $6,826 per person
PPP loans
$179K
11 loans, 34 jobs reported
Environment and hazard risk
Andover, IL, from FEMA, NOAA and EPA
Natural hazard risk
Relatively Low
Top: strong wind
Storm events since 1996
812
Countywide, mostly thunderstorm wind
Flood insurance policies
110
0.4% of homes, county
July high / Jan low
86° / 15°F
39.1 inches of rain a year
Hazards, floods and storm historyCheck a flood zone3 historic places
Health statistics
Share of adults in Andover, IL, CDC PLACES estimates
Obesity
35.5%
U.S. 33.3% +2.2 pts
Diabetes
10.5%
U.S. 12.1% -1.6 pts
Smoking
13.4%
U.S. 12.8% +0.6 pts
Uninsured (18-64)
6.7%
U.S. 11.1% -4.4 pts
ZIP codes in Andover
1 in or overlapping Andover. Population shown
Cities near Andover
| Name | Distance | Land area (sq mi) |
|---|---|---|
| OscoCensus-designated place | 3.4 mi | 0.2 |
| Lynn CenterCensus-designated place | 3.6 mi | 0.2 |
| CambridgeVillage | 5.3 mi | 2 |
| OphiemCensus-designated place | 5.6 mi | 1.2 |
| OrionVillage | 5.8 mi | 0.9 |
| SwedonaCensus-designated place | 8 mi | 0.3 |
| WoodhullVillage | 8.4 mi | 0.9 |
| AlphaVillage | 8.6 mi | 0.3 |
| NekomaCensus-designated place | 10 mi | 0.1 |
| WindsorVillage | 10 mi | 0.4 |
| SherrardVillage | 11 mi | 0.9 |
| CableCensus-designated place | 11 mi | 1.1 |
| Bishop HillVillage | 11 mi | 0.5 |
| GeneseoCity | 13 mi | 4.7 |
| Coal ValleyVillage | 13 mi | 3.2 |
| ColonaCity | 13 mi | 3.8 |
Frequently asked questions
- What county is Andover, IL in?
- Andover is in Henry County, Illinois.
- What ZIP codes are in Andover, IL?
- ZIP codes in or overlapping Andover include 61233.
- What is the population of Andover, IL?
- About 434 people live in Andover, based on American Community Survey 5-year estimates.
- What cities are near Andover?
- Nearby places include Osco (3.4 mi), Lynn Center (3.6 mi), Cambridge (5.3 mi), Ophiem (5.6 mi), Orion (5.8 mi).
Source: U.S. Census Bureau (TIGER/Line boundaries, American Community Survey) · Data as of 12/31/2023