ZIP codes
13
Mercer County, IL Demographics & ZIP Codes
Mercer County, Illinois demographics and median household income by ZIP code — 13 ZIP codes — population 16,739 — avg. income $71,152 — avg. home value $125,492. Compare income, housing, and ZIP-level data on US5.
Population
16,739
Median household income (avg.)
$71,152
95% of U.S. median
Average home value
$125,492
36% of U.S. median
Average rent
$559
48% of U.S. median
Mercer County demographics
Mercer County, Illinois covers 13 ZIP codes, with a combined ZIP-area population of about 16,739.
Median household income in Mercer County
The average median household income across ZIP codes in Mercer County, Illinois is about $71,152 — about 9% below the IL ZIP average ($78,143), and about 5% below the U.S. median ($75,149).
Among ZIPs with income data, 61281 (Cable) is near the top at about $96,295, while 61260 (Joy) is near the bottom at about $47,500.
Housing in Mercer County
For housing in Mercer County, Illinois, the average median home value is about $125,492 and the average median rent is about $559.
The most populous ZIP is 61231 (Aledo) with about 4,958 residents. Use the table below to compare ZIP codes across the county.
ZIP codes in Mercer County
Sort by population, income, or home value. Click a column header to toggle ascending / descending.
| ZIP | City | County | State | Population ↓ | Income | Home value |
|---|---|---|---|---|---|---|
| 61231 | Aledo | Mercer County | IL | 4,958 | $66,389 | $141,200 |
| 61281 | Cable | Mercer County | IL | 2,610 | $96,295 | $223,300 |
| 61272 | New Boston | Mercer County | IL | 1,463 | $65,893 | $131,300 |
| 61486 | Viola | Mercer County | IL | 1,429 | $71,786 | $126,000 |
| 61412 | Alexis | Mercer County | IL | 1,310 | $79,087 | $106,600 |
| 61465 | Windsor | Mercer County | IL | 1,251 | $57,014 | $110,400 |
| 61279 | Buffalo Prairie | Mercer County | IL | 960 | $87,279 | $164,700 |
| 61263 | Matherville | Mercer County | IL | 718 | $75,750 | $136,200 |
| 61260 | Joy | Mercer County | IL | 635 | $47,500 | $83,800 |
| 61476 | Seaton | Mercer County | IL | 553 | $86,667 | $127,000 |
| 61442 | Keithsburg | Mercer County | IL | 550 | $49,643 | $65,000 |
| 61466 | North Henderson | Mercer County | IL | 274 | $70,521 | $90,400 |
| 61276 | Preemption | Mercer County | IL | 28 | — | — |
Frequently asked questions
What are the demographics of Mercer County?
Mercer County, Illinois has a combined ZIP-area population of about 16,739 across 13 ZIP codes. Browse the ZIP table for population, income, and housing by code.
What is the median household income in Mercer County?
The average median household income across ZIP codes in Mercer County, Illinois is about $71,152, about 9% below the state ZIP average ($78,143), and about 5% below the U.S. median ($75,149). Average median home value is about $125,492. Among ZIPs with data, 61281 (Cable) is near the top ($96,295) and 61260 (Joy) is near the bottom ($47,500).
How many ZIP codes are in Mercer County?
Mercer County, Illinois includes 13 ZIP codes on US5. Each row links to demographics, median income, and housing for that code.
Where can I find ZIP code demographics for Mercer County?
This page lists ZIP codes in Mercer County, Illinois with population, median household income, and home value. Select a ZIP for a full demographics profile.