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Advertise here →Mason County · Illinois
Mason County, Illinois real estate & cities.
Countywide real estate hub for Mason County, IL — 1 live city guide, public market snapshots, and connections to local professionals.
Mason County, Illinois is a county-level market on USAHouses.com — a countywide hub linking verified city guides, public market data, and ways to connect with licensed professionals. We currently publish 1 city-level guides inside Mason County, covering resale homes, condos, land, and new construction across the county.
County pages complement city guides: they group places by official Census county or county-equivalent boundaries, surface nearby counties and major Illinois cities, and link to NewUSAHouses.com builder hubs when available.
Mason County corresponds to Census FIPS code 17125. FIPS is the geographic code for USA Counties.
County snapshot
Mason County at a glance
City guides on USAHouses
1 live
Combined population (catalogued places)
3,176
Median household income (midpoint of places)
$55,428
County price trend (FHFA HPI)
-0.1% (2025)
Market data compiled from public sources on linked city guides and county-level datasets; deemed reliable but not guaranteed. Full source list ↗
Places in Mason County
Cities & towns in Mason County
Mason County includes 1 places USAHouses.com tracks in its city manifest; 1 already have live market guides linked below.
Nearby
Nearby counties & major cities in Illinois
Other counties in Illinois with USAHouses city or county coverage:
Cook County
95 catalogued places
Lake County
31 catalogued places
DuPage County
29 catalogued places
Will County
20 catalogued places
McHenry County
17 catalogued places
St. Clair County
16 catalogued places
Kane County
14 catalogued places
Madison County
11 catalogued places
Larger Illinois cities with live USAHouses market guides — populous places first, including major metro hubs when available:
Chicago
Major metro
Aurora
Pop. 179,867 · Major metro city
Joliet
Pop. 149,785 · Major metro city
Naperville
Pop. 149,424 · Major metro city
Rockford
Pop. 147,649 · Major metro city
Elgin
Pop. 114,106 · Major city
Springfield
Pop. 113,714 · Major city
Peoria
Pop. 112,126 · Major city
Major metro hubs serving buyers comparing Mason County with larger nearby markets:
New construction
New homes in & near Mason County
Verified new-construction communities on NewUSAHouses.com in Illinois — linked when a matching metro or state hub exists.
Local resources
Get help buying or selling in Mason County
What can I afford?
Estimate a comfortable price range in under a minute, then connect with a lender for real numbers.
Rough estimate only (28% of income toward housing, ~6.5% illustrative rate, 30-year term) — not a loan offer or pre-qualification. Connect with a lender for real numbers →
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Advertise to local buyers
Lenders, inspectors, movers, and other local pros — this spot is open.
Advertise here →Reach Mason County buyers
Builders: feature your communities in front of Mason County buyers — learn about advertising ↗
Want to own this market? Ask about our Mason County domains — see available domains ↗
Official resources
Mason County government & services
Mason County government
Official county or county-equivalent government website (source: public records / Wikidata). Official site ↗
Schools
Havana CUSD 126 — 3 schools, 870 students (largest district in county by enrollment; attendance zones vary by address).
County house price trend
FHFA all-transactions HPI annual change -0.1% (2025).
Common questions
Mason County FAQ
What cities and towns are in Mason County, IL?
USAHouses.com currently catalogues 1 places in Mason County, with live market guides for 1 of them. Census recognizes additional small places and CDPs in most counties that may not yet have dedicated pages.
Where should I start looking for homes in Mason County?
Start with the live city guides for Havana — each links Census market data, nearby places, and ways to connect with local professionals.
Does USAHouses.com cover new construction in Mason County?
City and county guides link to NewUSAHouses.com where verified new-home communities exist in Illinois. Use the new-construction section on this page for same-state builder hubs; availability varies by market.
How is the Mason County housing market trending?
County-level FHFA house price index data shows a -0.1% annual change in 2025 — a countywide benchmark, not a guarantee for any single city or street.
How do I connect with an agent in Mason County?
Use the lead form at the bottom of this page to describe your buy or sell goals in Mason County. USA HOUSES LLC is a platform/media company, not a brokerage; licensed professionals are disclosed separately.
Search Mason County
Look up homes in Mason County
Search new construction and resale homes countywide — live MLS data, not just what's summarized on this page.
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Where to go next
Get help in Mason County
Tell us what you're looking for — buy, sell, both, invest, rent, or you're an agent, builder, vendor, or advertiser. Include where in Mason County you want to buy or sell and your address if relevant.
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