Rock Island County, IL Average Home Price (2026)
The average home price in Rock Island County, Illinois is about $208,000 (the 2026 median across 14 ZIP codes, at ~$146/sq ft) — 6% more expensive than the Illinois median and 28% more affordable than the typical U.S. home.
How Rock Island County compares
Rock Island County is relatively affordable for housing nationally: its typical home costs $208,000 against $197,000 for Illinois and $289,000 for the U.S. Within the county, ZIP-level values run from about $124,000 to $323,000.
| Area | Typical value | $ / sq ft |
|---|---|---|
| Rock Island County | $208,000 | $146 |
| Illinois | $197,000 | $134 |
| United States | $289,000 | $193 |
Rock Island County home prices by ZIP code
The 14 most valuable ZIP codes in Rock Island County (of 14 with data):
| ZIP code | Typical value | $ / sq ft | vs county |
|---|---|---|---|
| 61278 Rapids City | $323,000 | $170 | +55% |
| 61275 Port Byron | $305,000 | $212 | +47% |
| 61259 Illinois City | $279,000 | $193 | +34% |
| 61240 Coal Valley | $274,000 | $142 | +32% |
| 61284 Taylor Ridge | $272,000 | $147 | +31% |
| 61242 Cordova | $231,000 | $127 | +11% |
| 61256 Hampton | $209,000 | $162 | +0% |
| 61232 Andalusia | $207,000 | $175 | +0% |
| 61264 Milan | $189,000 | $144 | -9% |
| 61282 Silvis | $165,000 | $141 | -21% |
| 61244 East Moline | $150,000 | $151 | -28% |
| 61265 Moline | $150,000 | $126 | -28% |
| 61201 Rock Island | $124,000 | $99 | -40% |
| 61239 Carbon Cliff | $124,000 | $87 | -40% |
Home value appreciation in Rock Island County
Home prices in Rock Island County have risen about 53% over the last 10 years (≈4.3% a year) and +57.6% over 20 years, according to the FHFA house price index through 2025. The most recent year came in at +3.2% — still rising. A home worth $208,000 today was worth roughly $135,859 ten years ago.
See where that trend takes a specific home with the home appreciation calculator — statewide, Illinois is +64.6% over the same 10 years. Past appreciation is a track record, not a forecast; local prices can fall.
Calculators for Rock Island County
Run the numbers for Rock Island County with the local rates already filled in — change any input to test your own situation.
Salary needed to buy a home in Rock Island County
To buy the typical $208,000 home in Rock Island County with 20% down, you need a household income of roughly $57,000 a year (about $1,320 a month for the mortgage, taxes, and insurance). With 10% down the bar rises to about $67,000, because the loan is bigger and mortgage insurance kicks in.
| Down payment | Cash down | Monthly payment | Income needed |
|---|---|---|---|
| 5% (+PMI) | $10,400 | $1,640/mo | $70,000/yr |
| 10% (+PMI) | $20,800 | $1,570/mo | $67,000/yr |
| 20% | $41,600 | $1,320/mo | $57,000/yr |
Assumes a 30-year fixed mortgage at 6.5%, property tax at 1.1% and insurance at 0.45% of value per year, PMI of 0.75% on loans with less than 20% down, and the standard 28% housing-to-income rule. Your rate, taxes, and HOA will move these — run your own numbers in the mortgage calculator.
What your budget buys in Rock Island County
At about $146 per square foot, here is roughly how much home different budgets get you in Rock Island County:
| Budget | Approx. size | What that looks like locally |
|---|---|---|
| $150k | 1030 sq ft | below the local median — condos, smaller or older homes |
| $200k | 1370 sq ft | around the typical home here |
| $250k | 1710 sq ft | around the typical home here |
| $300k | 2050 sq ft | above the median — larger homes or the pricier ZIPs |
| $400k | 2740 sq ft | above the median — larger homes or the pricier ZIPs |
Wondering where that budget goes further? The relocation calculator ranks hundreds of U.S. cities by what the same money buys — it opens filtered to Illinois.
Estimate a specific home in Rock Island County
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Rock Island County home prices: frequently asked
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Browse all Illinois cities and counties, or look up price per square foot by ZIP code nationwide.
Directional estimates from public market data (Realtor.com & Zillow research; FHFA house price index; Census ZIP-to-county relationships), not appraisals.