RANK #306 / 996 · POP 67,120 · IL
PROJECTED GROWTH: +1.5%
Marion, the county seat of Williamson County, Illinois, is known for its local restaurants, including Italian and barbecue establishments. Located in Southern Illinois, often called "Little Egypt," the county is approximately two hours southeast of St. Louis, Missouri. The community offers a slower pace of life with access to outdoor recreation, including Crab Orchard National Wildlife Refuge, which provides opportunities for hiking, fishing, and hunting across its 44,000 acres. Williamson County also features various local parks with walking paths and lakes. Life in Williamson County often appeals to families, with public schools generally performing above average. The economy is supported by sectors such as healthcare, retail, and educational services. The county has seen investment in energy-related industries, contributing to job growth. Williamson County also participates in an Enterprise Zone program, offering tax incentives for new construction and significant renovations, which can include residential properties.
Below national median
Above national median
Moderate climate & terrain
Housing looks undervalued at 3.0x — home prices are low relative to local economic output. The typical U.S. county is 4–6x.
Source: Redfin · Census BPS — Browse sales on Redfin →
| PROJECT | AMOUNT | STATUS |
|---|---|---|
|
Marion North Battery Storage
Unknown
|
$200M | Planned |
|
Ordill Battery Storage
Unknown
|
$190M | Planned |
|
Illinois 37 Resurfacing and Roundabout
Illinois Department of Transportation
|
$50M | Planned |
|
Oasis Sports Complex
Unknown
|
$50M | Proposed |
|
Walker's Bluff Casino Resort Expansion
Walker's Bluff Casino Resort
|
$50M | Operating |
Source: public records, news, corporate announcements. Amounts are estimates where noted.
Bars show percentile rank among all 996 counties.
Williamson County has a Boom Town Index score of 69/100, ranking #306 among 996 U.S. counties. With job growth at +0.8% and a median household income of $60,325, it's an above-average county on economic indicators.
The median home value in Williamson County is $139,500 with median rent at $824/month. The income-to-home-value ratio is 0.4324, which is more affordable than the national average.
Population growth: -0.2% year-over-year. Job growth: +0.8%. Home values changed +2.0% in the past 12 months.
Yes — 4.29% of Williamson County's population moved from another state, which is above the national average and indicates strong in-migration.