States · Illinois · Saint Clair County

Marissa, Illinois.

Typical home $114,909 (-1.3% in a year). St. Louis, MO-IL metro.

What it costs per month · Marissa $603/mo

to buy the typical home at today's mortgage rate — +$245 (+68%) since Jan 2020.

What the home itself did
1 year
Down $1,473 -1%
$116,382$114,909 since Sep 2025
5 years
Up $4,789 +4%
$110,121$114,909 since Sep 2021

Monthly payment to buy the typical home

Home value × that month's 30-year mortgage rate, 20% down, principal and interest. This is the line households feel: prices and rates compound each other.

$500 $1,000 $1,500 $2,000 2002 2006 2010 2014 2018 2022 2026 Marissa $603 Illinois $1,553 United States $1,922
$500 $1,000 $1,500 $2,000 2002 2010 2018 2026
  • Marissa$603
  • Illinois$1,553
  • United States$1,922

At the last five years' pace, a typical home here doubles in price every 81 years.

Typical home values in Marissa, IL fell 1.3% over the past year — slower than the nation's +1.2%.

Living in Marissa, St. Clair County, Illinois

Marissa is a village of 1,833 people in St. Clair County. Unemployment in St. Clair County was 3.9% in August 2026, and the county had 0.9% fewer jobs in 2025 than the year before. The most residents work in schools and health care, then manufacturing.

People 1,833 in the 2020 census
Household income Too few homes in Marissa for the Census survey to measure.
Unemployment 3.9% St. Clair County, August 2026; 4.9% a year before
Homes Too few homes in Marissa for the Census survey to measure.

Written by AI Claude Sonnet 5.5 wrote this on 24 October 2026 from the figures here, a list of nearby places and what it knows. It can be wrong or out of date.

What it’s like

The place. Marissa is a small village in St. Clair County, home to fewer people than most towns on this site. Homes here cost well below what is typical across the country, and fewer adults hold a four-year degree than in most places. The poverty rate sits at a level that many small Illinois towns will recognize. Winters are cold, with January the coldest month and a modest amount of snow each year, while summers turn warm, with July the hottest. Rain and melted snow add up to a fair amount over the year.

Work. Residents work mostly in schools, hospitals and social care, with manufacturing, the building trades, and restaurants, hotels and entertainment also employing many. Across St. Clair County, the largest workplaces include Memorial Hospital, Southwestern Illinois College and St. Elizabeth Hospital. Unemployment across the county has slipped a little lower than a year earlier, though the county has fewer jobs than it did the year before. The typical commute is a long one, and some residents work from home.

Things to do. A short drive away, Baldwin Lake and the Baldwin Lake State Fish and Wildlife Area offer a lake and protected land for fishing and walking. Also a short drive away is the Peabody River State Fish and Wildlife Area, another stretch of protected land. For a longer outing, the Kaskaskia River is one of the best known waterways in the area, though it is a longer drive.

Report a mistake
  • 577households
  • 12%of adults have a degree
  • 13%below the poverty line
  • 30 mintypical commute
  • 12%work from home

What residents work in

  • Schools, hospitals and social care24%
  • Manufacturing13%
  • Building trades11%
  • Restaurants, hotels and entertainment10%
  • Shops (retail)10%
  • Professional and business services9%

Employed residents by industry, from the Census survey. St. Clair County had 89,192 jobs in 2025, 0.9% fewer than the year before (Bureau of Labor Statistics).

Weather through the year

Average daily high and low for each month: coldest in January, 40° and 22°; warmest in July, 88° and 66° 20° 40° 60° 80° J 40° 22° F M A M J J 88° 66° A S O N D
Average daily high and low for each month: coldest in January, 40° and 22°; warmest in July, 88° and 66° 20° 40° 60° 80° J 40° 22° F M A M J J 88° 66° A S O N D

Coldest in January, with highs near 40° and lows near 22°; warmest in July, with highs near 88° and lows near 66°. About 11 inches of snow and 46 inches of rain and melted snow a year.

Average daily high and low, 1991–2020, at the Sparta West weather station, 10 miles away (NOAA).

Largest workplaces in St. Clair County

  1. Memorial HospitalGeneral hospital1,573FTE
  2. Southwestern Illinois CollegeTwo-year college978
  3. St. Elizabeth HospitalGeneral hospital878FTE
  4. Advancepierre FoodsFrozen specialty food manufacturing837
  5. Gulfstream St. LouisAircraft maintenance and repair services728
  6. O Fallon CCSD 90School district683FTE
  7. AmazonGeneral warehousing and storage653
  8. East St Louis SD 189School district643FTE

Staff on average in 2025, as each workplace reported it to OSHA with its injury records: 210 workplaces with 20 or more staff, 24,885 people in all across the county; Marissa has two of its own. Hospitals come from their Medicare cost reports (CMS, 2023), colleges from IPEDS (NCES, 2023–24) and school districts from the Common Core of Data (NCES, 2023–24); FTE marks full-time equivalent staff. Not listed: many offices and banks, which need not report to OSHA; military bases, whose staff OPM withholds; and, in about half the states, city and county governments.

Natural hazards

  1. Heat wavesRelatively high
  2. EarthquakesRelatively high
  3. Inland floodingRelatively high
  4. Cold wavesRelatively high
  5. HailRelatively high
  6. TornadoesRelatively high

FEMA’s National Risk Index (December 2025) rates the risk each natural hazard poses to the people, buildings and farms in Marissa’s census tracts, against the rest of the country; all of them together, relatively high. It is meant for planning, not a substitute for a local risk assessment or a flood map: FEMA’s index.

From the U.S. Census Bureau’s 2020 census and its American Community Survey (2020–2024 five-year estimates), and the Bureau of Labor Statistics. A survey, so each figure has a margin of error, and figures it is not sure of are left out. More on St. Clair County and the St. Louis, MO-IL metro.

Marissa home values

Zillow measures a city over its municipal boundary. Against the state and national figures, mid-tier homes, smoothed and seasonally adjusted.

$100,000 $200,000 $300,000 2018 2020 2022 2024 2026 Marissa $114,909 Illinois $295,943 United States $366,157
$100,000 $200,000 $300,000 2018 2022 2026
  • Marissa$114,909
  • Illinois$295,943
  • United States$366,157

When this market ran hot

Each cell is that month's year-on-year home-value growth. Read left to right, top row is the latest year — the 2021–22 band is the boom.

JFMAMJJASOND
2026
2025
2024
2023
2022
2021
2020
2019
2018
falling flat warming hot overheating runaway

Market heat, inside the city limits

Homes for sale

Active for-sale inventory. More supply hands power to buyers.

6 8 10 12 2025 2026 Marissa 9
6 8 10 12 2025 2026
  • Marissa9

Zip codes with a Marissa address

A different geography, not a breakdown. The figure above covers the municipality; these zips cover everywhere the Post Office calls Marissa — often including townships beyond the city limits. Both come straight from Zillow, and they are not expected to average out.

Zip codes in Marissa