Counties / Illinois / Clinton County

Clinton County, IL

FIPS 17027 · population 36,954 · part of St. Louis, MO

$225k
Zillow home value · 2026-06
The numbers

What this county costs and earns

Everything here joins on the county FIPS code, so each figure comes from the agency that publishes it with no name matching in between.

Zillow home value
$225k
▲ 8.0% year over year
Zillow ZHVI · direct
ACS median gross rent
$912
occupied-unit survey; not current asking rent
Census ACS · surveyed
Gross yield
n/a
gross yield cannot be computed without measured market rent
requires both measured price and measured rent
HUD 2-bed standard
$1,218
the Section 8 payment standard
HUD Fair Market Rent · direct
Independent price check

Do two methods point the same way?

Zillow estimates a current home value. FHFA tracks repeat mortgage transactions. Their growth rates should be read side by side, not averaged.

Both annual signals move in the same direction
FHFA five-year cumulative+48.2%not annualized · through 2025
0%ZILLOW ZHVI2026-06+8.0%FHFA HPI2025+5.5%
Annual changes use different methods and may use different periods. The comparison checks direction and magnitude; it does not create a blended estimate. Zillow county ZHVI pulled 2026-07-26; FHFA annual county HPI pulled 2026-07-28.
Owner-reported value$192k
Surveyed gross rent$912
Rent burden 30%+36.6%
Median year built1977
Housing composition

Who occupies the stock—and what it is

ACS 2024 5-year
7.6%vacant
15,765estimated housing units
Occupied tenure19.7% renter
owner 80.3%renter 19.7%
Structure mix82.6% single-family
Single-family 82.6%20+ units 2.1%Mobile home 8.7%Other 6.6%
ACS estimates describe the standing housing stock and occupied tenure. They do not measure current listings, transaction prices or asking rents.

Survey source: Census ACS 5-year — county housing value, tenure and stock · ACS 2024 5-year · pulled 2026-07-30. These values describe different housing universes and are not combined into gross yield.

Annual average covered jobs12,711▲ 0.9% from the prior annual release
Covered establishments928annual average reporting locations
Average weekly wage$1,035▲ 7.3% from the prior annual release
Largest private supersectorTrade, transportation, and utilities29.6% of disclosed private covered jobs
Local labor base

Jobs, pay and private-sector concentration

2025
0%COVERED JOBS+0.9%WEEKLY WAGE+7.3%Trade, transportation, and utilities29.6%
Annual QCEW counts cover jobs located at reporting establishments. The industry share uses disclosed private covered employment; it is not a resident-employment measure or a forecast.

Workplace source: BLS QCEW — county employment and wages · annual county employment and wages 2025 vs 2024 · pulled 2026-07-31. QCEW counts covered jobs located in the county, not employed residents or the metro score’s CES/LAUS series.

County brief

What the local evidence says

01Decision frame

Clinton County presents a valuation-versus-liquidity tension: Zillow’s 2026-06 county median home value was $224,640, up 7.96% year over year, while the 2025 FHFA repeat-transaction HPI rose 5.48% annually and 48.23% cumulatively over five years. The measures agree on direction but have different vintages and methods; they are not one appreciation rate. This merits investigation by buyers who can test property-level cash flow and resale evidence, while buyers dependent on a quick exit should be cautious.

02Housing economics

Housing economics remain unpriced. HUD’s two-bedroom FMR of $1,218 per month is a payment standard, not an estimate of asking rent. Because market rent is not published, gross yield cannot be computed. The effective property-tax rate is 1.83%, with a $3,524 median annual tax, making assessed-tax review material to carrying-cost work. The modeled expected annual climate-loss ratio is 0.21% of building value and aligns with the named inland-flood hazard; it is not a property-specific damage estimate.

03Demand & competition

At the 2026-06 Realtor.com MLS observation, 46 active listings had a 58-day median marketing time, 18.55% had reductions, and the pending-to-active ratio was 75.82%. These are visible supply, seller-concession, and listing-pipeline measures—not closed-sale prices or proof of buyer demand. Listing-price movement is available as an asking-price series only; underwrite against verified sold comparables rather than treat it as the Zillow value.

04Risk & next checks

Demand evidence is mixed rather than conclusive. Tax-return migration was net outward, and average AGI was lower among movers in than movers out. Investors were a minority of purchase mortgages, so their presence describes a buyer cohort but not bidding pressure for an asset. QCEW reports annual covered employment at county workplaces and the covered-worker average weekly wage rising, with Trade, transportation, and utilities the largest disclosed private supersector; it is neither resident employment nor an unemployment or forecast series. Next checks are property-level market rents, leases, tax assessments, flood zone and insurance quotes, and closed comparables; their absence prevents yield, operating-cost, hazard, and exit-value underwriting.

Cities & communities

Where people live within Clinton County

Census-recognized incorporated places and CDPs that intersect this county. The list does not pretend to include every neighborhood or informal community.

Population scale

Largest Census places

ACS 2024 5-year
Centralia city*11.9KBreese city4.3KNew Baden village*3.5KCarlyle city3KTrenton city2.7KAviston village2.4KGermantown village1.4KAlbers village1.3K
Bars use total place population, not a county-share estimate. An asterisk marks a place that crosses a county line.
Official directory

16 Census places

Population
  1. 01
    Centralia cityIncorporated place · spans 4 counties
    11,856
  2. 02
    Breese cityIncorporated place
    4,301
  3. 03
    New Baden villageIncorporated place · spans 2 counties
    3,463
  4. 04
    Carlyle cityIncorporated place
    2,980
  5. 05
    Trenton cityIncorporated place
    2,664
  6. 06
    Aviston villageIncorporated place
    2,387
  7. 07
    Germantown villageIncorporated place
    1,350
  8. 08
    Albers villageIncorporated place
    1,280
  9. 09
    Beckemeyer villageIncorporated place
    993
  10. 10
    Wamac cityIncorporated place · spans 3 counties
    804
  11. 11
    Bartelso villageIncorporated place
    782
  12. 12
    Keyesport villageIncorporated place · spans 2 counties
    635
Show 4 more places
  1. 13
    Hoffman villageIncorporated place
    607
  2. 14
    St. Rose villageIncorporated place
    593
  3. 15
    Damiansville villageIncorporated place
    570
  4. 16
    Huey villageIncorporated place
    109

Population is the total place-wide ACS estimate, not an allocated county share. A place crossing a county line is labelled explicitly. Source: Census ACS 5-year — cities and communities · ACS 2024 5-year · pulled 2026-07-30.

Risk, demand and competition

The three things a price does not tell you

01
Risk & carrying costFEMA NRI + Census ACS
Dominant hazardinland flooding

0.208% of building value expected lost per year

Effective property tax1.83%

$3,524 median annual bill

02
DemandIRS SOI household flows
Net migration-102

710 in · 812 out

Arriving vs leaving income−$3,840

$52,882 arriving · $56,722 leaving

03
CompetitionHMDA financed purchases
Purchases by investors11.9%

43 of 361 mortgages

investorother financed
Current listing pressure

What sellers and visible supply are doing

Realtor.com® Economic Research · county inventory 2026-06 · pulled 2026-07-28
Active listings46▲ 16.7% year over year
Median days on market58▲ 39.4% year over year
Listings price-reduced18.6%seller-concession signal
Median listing pricen/a▲ 13.6% year over year

Listing price is an asking price, not a closed sale. Quality-flagged county rows are withheld instead of displayed.

No rent index is published for this county.Zillow’s county rent series does not cover every county, and estimating one from a neighbouring county would be a guess wearing a number’s clothes. Everything above is measured here; for a rent figure, the St. Louis, MO page covers the wider market.
Same metro

The other counties in St. Louis, MO

A metro is an average of these. Which side of a county line a property sits on can change the tax bill, the hazard profile and the tenant pool.

CountyPopulationPriceRentYieldHazard
Clinton County36,954$225kn/an/ainland flooding
St. Louis County995,569$293k$1,4776.0%inland flooding
St. Charles County414,535$378k$1,7005.4%inland flooding
St. Louis city288,512$187k$1,3948.9%inland flooding
Madison County264,238$202k$1,1777.0%inland flooding
St. Clair County253,694$181k$1,3218.8%inland flooding
Jefferson County229,458$298k$1,4846.0%inland flooding
Franklin County105,950$273k$1,1565.1%inland flooding
Lincoln County63,057$319k$1,7506.6%inland flooding
Bear case

What can break the county thesis

  1. Published data lack market rent and operating costs, preventing cash-flow underwriting.
  2. Inland-flood exposure and insurance costs may differ materially by parcel from the county climate model.
  3. MLS listing measures may not translate into a specific property’s closed-sale liquidity or exit value.
Underwriting questions

Before pricing a property

Can this record calculate gross yield?

No. Published market rent is absent, and the HUD two-bedroom FMR is a payment standard rather than asking rent.

Does the record establish investor-led buyer competition?

No. Investor purchase mortgages were a minority of total purchases, and the record provides no bid, neighborhood, or buyer-type detail.

What does the migration evidence say about household composition?

Tax-return migration was net outward, and movers in had lower average AGI than movers out.