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Advertise here →Williamsville, IL · village
Williamsville, Illinois houses and real estate market data.
Houses in Williamsville, IL (Sangamon County) — market data for Williamsville houses and the whole local market.
village · Census GEOID 1781854
FEATURED LISTING: WATERFRONT LAKE HOME FOR SALE
Clearlake Oaks Canal-Front Oasis
$425,000 • 3 Beds • 2 Baths • 1,204 Sq Ft
554 Keys, Clearlake Oaks, CA 95423
Luxury Living Lake Lifestyle – Deep Water Access to Clear Lake: PAID-OFF SOLAR • 10-Ft Concrete Seawall • Double Boat Lifts & Private Dock • Hot Tub • Mini-Split HVAC • Close to SF Bay / Wine Country • Cleanest Air in America (Lake County CA) • Spacious Patio and Deck • Open Floor Plan • RV/Boat Parking • Want the Boats? • Make Offer ASAP This Lake Home For Sale in California won't last!
*Listed by Scott Brown, eXp Realty of California, Inc. DRE #01956840. Inquiries delivered directly to listing agent. Search.USAHouses.com*
Contact Agent Direct:
Scott Brown - eXp Realty
Scott@USAHouses.com
Call/Text (707) 474-8855
Click Anywhere on Ad for More Info / Listing Page
Williamsville, IL is a village in Sangamon County, Illinois — this guide covers houses in Williamsville and the whole local market: resale homes, condos, land, and new construction.
Info from government sites and builders may have provided source info.
Open map pin ↗ · 39.956112, -89.543628
At a glance
Williamsville market snapshot
Place type
village
County
Sangamon County
Map pin
39.956112, -89.543628
Census GEOID
1781854
Land area
1.55 sq mi
Market data compiled from public sources; deemed reliable but not guaranteed; verify independently. Full source list ↗
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Advertise here →Why Williamsville
What makes Williamsville different
Village
The U.S. Census Bureau lists Williamsville as a village in Sangamon County, Illinois.
Nearby
Places around Williamsville
County guide: Sangamon County — cities, market context, and local resources for the county that includes Williamsville.
USAHouses.com also lists other Sangamon County places in Illinois. Each linked guide uses the same Census place geography.
Nearby communities include Sherman, Spaulding, Cantrall, Riverton, Dawson, Buffalo, Grandview, Springfield.
Sherman market data
Nearby city · ~5.6 mi
Spaulding market data
Nearby city · ~6.2 mi
Cantrall market data
Nearby city · ~7.3 mi
Riverton market data
Nearby city · ~7.6 mi
Dawson market data
Nearby city · ~8.3 mi
Buffalo market data
Nearby city · ~10.2 mi
Grandview market data
Nearby city · ~10.4 mi
Springfield market data
Nearby city · ~12.6 mi
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Common questions
Williamsville FAQ
What kind of place is Williamsville, IL?
The U.S. Census Bureau lists Williamsville as a village in Sangamon County, Illinois.
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🔥 Paid Advertisement: NEW HOME FOR SALE BY OWNER (Builder)
Northern California Luxury Home
3+ Beds • 4 Baths • 2,964 Sq Ft
17867 Deer Hill Rd, Hidden Valley Lake, CA 95467
Brand New 2026 Construction with LAKE VIEWS:
SPACIOUS LOT • Open Floor plan • Chef's kitchen • Interior aquarium • Dual fireplaces • Solar • EV-ready 3-car garage • Waterfall fountain • Great Views • Gated & Guarded Community • Golf Course • Driving Range • Community Pool • Private Lake
📩 Contact Owner Direct
Michael@Fonestream.net
*USA Houses LLC provides paid advertising space only. Property is listed with an outside MLS brokerage. Inquiries are delivered directly to the advertiser.*