Buildocrat US Land Value Book

Land and home values in St. Clair County, Illinois

St. Clair County (metro core, St. Louis, MO-IL) covers 658 square miles and 68 census tracts. Residential land is about $3.27 per sq ft at the county median, from $0.82 in its most rural tracts to $5.67 in its most valuable. The typical home is worth about $210,000 and a 2-bedroom rents for about $1,200 a month, as of October 12, 2026.

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County values

Land: residential$3.27per sq ft
Land: residential$142,615per acre
Land: quarter-acre lot$35,65410,890 sq ft
Land: farmland$10,500per acre
Home: typical (median)$210,000value
Home: entry-level$137,000lower quartile
Home: upper-end$286,000upper quartile
Build new$194per sq ft, no land
Rent: 1-bedroom$975per month
Rent: 2-bedroom$1,200per month
Rent: 3-bedroom$1,530per month
Rent: 4-bedroom$1,780per month
Gross yield, 2-bed6.9%a year

Price tiers

TierTractsLand $/sq ftTypical homeRent 2-bed
Upper7$5.67$395,000$1,470
Mid22$3.95$257,000$1,260
Entry39$2.28$110,000$1,090

Tiers rank neighborhoods by home value within each metro area; outside metro areas they follow how built-up the land is. They describe prices only.

Cities and towns

Highest-value places

PlaceTypeLand $/sq ftTypical home
HearthstoneNeighborhood$5.59$409,000
Estates at Lincoln FarmNeighborhood$5.44$419,000
Forest HillsNeighborhood$5.44$420,000
Nolin CreekNeighborhood$5.43$409,000
GettysburgNeighborhood$5.43$398,000
SteeplechaseNeighborhood$5.41$397,000
ShilohTown$4.88$321,000
O'FallonTown$4.60$347,000

Questions people ask

How much is land worth in St. Clair County, IL?

Residential land in St. Clair County, IL is about $3.27 per square foot, or $142,615 an acre, as of October 2026. A quarter-acre lot (10,890 sq ft) is about $35,654. Smaller lots sell for more per square foot and large tracts for less.

What is the typical home value in St. Clair County, IL?

The typical (median) home in St. Clair County, IL is worth about $210,000, with entry-level homes around $137,000 and upper-end homes around $286,000, as of October 2026.

How much is rent in St. Clair County, IL?

A 2-bedroom rents for about $1,200 a month in St. Clair County, IL, a 1-bedroom about $975 and a 3-bedroom about $1,530 (gross rent including utilities, HUD Fair Market Rent basis).

How much is farmland per acre in St. Clair County, IL?

Farmland averages about $10,500 an acre in St. Clair County, IL (USDA, including buildings), well below residential land.

Is this an appraisal?

No. Indicative values for screening, budgeting and negotiation, not an appraisal. For lending, a tax appeal or legal use, hire a state-licensed or certified appraiser.

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