Arnold, Missouri.
Typical home $272,801 (+3.6% in a year), asking rent $1,807 . St. Louis, MO-IL metro.
to buy the typical home at today's mortgage rate — +$757 (+112%) since Jan 2020.
- 1 year
- Up $9,370 +4%
- $263,431$272,801 since Sep 2025
- 5 years
- Up $53,907 +25%
- $218,895$272,801 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.
- Arnold$1,432
- Missouri$1,393
- United States$1,922
At the last five years' pace, a typical home here doubles in price every 16 years.
Typical home values in Arnold, MO rose 3.6% over the past year — faster than the nation's +1.2%.
Living in Arnold, Jefferson County, Missouri
Arnold is a city of 20,858 people in Jefferson County. Half its households earn more than $78,370 a year and half less, against $82,851 across Jefferson County; 8% of its people live below the poverty line. 80% of its homes are lived in by their owners and 20% are rented. Unemployment in Jefferson County was 3.6% in August 2026, and the county had 0.3% more jobs in 2025 than the year before. The most residents work in schools and health care, then professional services.
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 It can be wrong or out of date.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. Arnold is a city in Jefferson County, Missouri, where most homes are lived in by their owners. The population is a little younger than the typical American town, and household incomes run somewhat below the county's. Rents are higher than many neighbors might expect, and a four-year degree is less common among adults here than in many places.
Work. Many residents work in schools, hospitals and social care, with others in professional and business services, manufacturing and shops. FOX C Schools is the largest workplace in town, followed by Walmart and Metal Container. Jobs across the county have held about steady over the past year, and the typical commute is a fairly long one.
Things to do. The Meramec River runs in or beside town, a natural spot for time outdoors. A longer drive brings you to St. Louis's best-known sights, including Gateway Arch National Park and the Missouri Botanical Garden. Cahokia, an archaeological site, is also a longer drive away.
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- 8,394households
- 25%of adults have a degree
- 8%below the poverty line
- 27 mintypical commute
- 8%work from home
What residents work in
Employed residents by industry, from the Census survey. Jefferson County had 49,584 jobs in 2025, 0.3% more than the year before (Bureau of Labor Statistics).
Weather through the year
Coldest in January, with highs near 41° and lows near 22°; warmest in July, with highs near 88° and lows near 67°. About 9 inches of snow and 44 inches of rain and melted snow a year.
Average daily high and low, 1991–2020, at the Festus weather station, 14 miles away (NOAA).
Largest workplaces in Arnold
- Fox C-6 SchoolsSchool district1,144FTE
- WalmartWarehouse clubs and supercenters572
- Metal ContainerCans, aluminum, light gauge metal, manufacturing318
- TargetDiscount department stores179
- Lowe's Companies, INCHomecenter143
- Medart ArnoldTractors, farm and garden, merchant wholesalers123
- Schnuck MarketsSupermarket groc not convenience store118
- Cedarhurst Living, LLC - ArnoldAssisted-living facilities with on-site nursing facilities81
Staff on average in 2025, as each workplace reported it to OSHA with its injury records: 21 workplaces with 20 or more staff, 2,074 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
- Strong windRelatively high
- TornadoesRelatively high
- LightningRelatively high
- Hailrelatively high in parts of ArnoldRelatively moderate
- EarthquakesRelatively moderate
- Cold wavesrelatively high in parts of ArnoldRelatively moderate
FEMA’s National Risk Index (December 2025) rates the risk each natural hazard poses to the people, buildings and farms in Arnold’s 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 Jefferson County and the St. Louis, MO-IL metro.
Arnold home values
Zillow measures a city over its municipal boundary. Against the state and national figures, mid-tier homes, smoothed and seasonally adjusted.
- Arnold$272,801
- Missouri$265,387
- 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 4 Arnold listings, and the typical home goes pending in 7 days — the market is roughly in balance.
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.
- Arnold25.64%
- United States26.90%
Days to pending
How long the typical listing takes to go under contract.
- Arnold7
- United States27
Homes for sale
Active for-sale inventory. More supply hands power to buyers.
- Arnold67
New listings per month
Sellers arriving at the market.
- Arnold37
Median sale price
What buyers actually paid — closed sales, not asking prices.
- Arnold$286,676
- United States$371,407
Sale-to-list ratio
Above 100%, homes sell over asking; below, buyers negotiate wins.
- Arnold101.89%
Zip codes with a Arnold address
A different geography, not a breakdown. The figure above covers the municipality; these zips cover everywhere the Post Office calls Arnold — often including townships beyond the city limits. Both come straight from Zillow, and they are not expected to average out.