Marseilles, Illinois.
Typical home $199,859 (+4.6% in a year). Ottawa, IL metro.
to buy the typical home at today's mortgage rate — +$585 (+126%) since Jan 2020.
- 1 year
- Up $8,765 +5%
- $191,093$199,859 since Sep 2025
- 5 years
- Up $49,682 +33%
- $150,177$199,859 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.
- Marseilles$1,049
- Illinois$1,553
- United States$1,922
At the last five years' pace, a typical home here doubles in price every 12 years.
Typical home values in Marseilles, IL rose 4.6% over the past year — faster than the nation's +1.2%.
Living in Marseilles, LaSalle County, Illinois
Marseilles is a city of 4,845 people in LaSalle County. Half its households earn more than $58,217 a year and half less, against $73,045 across LaSalle County; 22% of its people live below the poverty line. 68% of its homes are lived in by their owners and 32% are rented. Unemployment in LaSalle County was 4.4% in August 2026, and the county had 1.3% fewer jobs in 2025 than the year before. The most residents work in schools and health care, then manufacturing.
Written by AI Claude Sonnet 5.5 wrote this on 23 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 It can be wrong or out of date.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. Marseilles is a small city in LaSalle County, Illinois, with a median age somewhat older than the national figure and more homes lived in by their owners than rented. Incomes run below the county's, and a good share of residents live below the poverty line. Winters are cold, with a fair amount of snow, and summers turn warm.
Work. Residents work mostly in schools, hospitals and social care, followed by manufacturing, shops, and transport, warehouses and utilities. Among the largest workplaces in Marseilles are Nucor Tubular Products-Marseilles, which makes pipe from purchased iron or steel, Infra-metals CO - Central, a steel distributor, and Goldwater Care Marseilles, a skilled nursing facility. Jobs across LaSalle County slipped last year, and unemployment there is lower than it was a year earlier.
Things to do. The Fox River is a short drive away, and so are Illini State Park and the LaSalle Lake State Fish and Wildlife Area, both protected areas where people go to be outdoors. Starved Rock State Park, one of the best known protected areas in the state, is a longer drive away.
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- 1,845households
- 24%of adults have a degree
- 22%below the poverty line
- 31 mintypical commute
- 10%work from home
What residents work in
Employed residents by industry, from the Census survey. LaSalle County had 38,720 jobs in 2025, 1.3% fewer than the year before (Bureau of Labor Statistics).
Weather through the year
Coldest in January, with highs near 31° and lows near 14°; warmest in July, with highs near 84° and lows near 62°. About 25 inches of snow and 39 inches of rain and melted snow a year.
Average daily high and low, 1991–2020, at the Marseilles Lock weather station, 5 miles away (NOAA).
Largest workplaces in Marseilles
- Nucor Tubular Products-MarseillesPipe made from purchased iron or steel150
- Infra-metals CO - CentralSteel distribution94
- Goldwater Care MarseillesSkilled nursing facilities71
- Marseilles ESD 150School district67FTE
Staff on average in 2025, as each workplace reported it to OSHA with its injury records: 3 workplaces with 20 or more staff, 315 people in all. School districts come 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
- Inland floodingVery high
- Cold wavesRelatively high
- Strong windrelatively high in parts of MarseillesRelatively moderate
- Tornadoesrelatively high in parts of MarseillesRelatively moderate
- Lightningrelatively high in parts of MarseillesRelatively moderate
- Winter weatherRelatively moderate
FEMA’s National Risk Index (December 2025) rates the risk each natural hazard poses to the people, buildings and farms in Marseilles’ census tracts, against the rest of the country; all of them together, relatively moderate. 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 LaSalle County and the Ottawa, IL metro.
Marseilles home values
Zillow measures a city over its municipal boundary. Against the state and national figures, mid-tier homes, smoothed and seasonally adjusted.
- Marseilles$199,859
- Illinois$295,943
- United States$366,157
Levy by levy, and a check of one home’s own bill, the site covers Ohio’s property tax.
Sellers are cutting prices on about 1 in 5 Marseilles listings — the market is cooling.
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.
Market heat, inside the city limits
Share of listings with a price cut
The early-warning dial: sellers cut when buyers stop reaching. Rising cuts cool a market months before prices notice.
- Marseilles18.38%
- United States26.90%
Homes for sale
Active for-sale inventory. More supply hands power to buyers.
- Marseilles105
New listings per month
Sellers arriving at the market.
- Marseilles19
Zip codes with a Marseilles address
A different geography, not a breakdown. The figure above covers the municipality; these zips cover everywhere the Post Office calls Marseilles — often including townships beyond the city limits. Both come straight from Zillow, and they are not expected to average out.