MO area data
Arnold, MO
Arnold, MO.
Population: 34,478 (Census ACS)
The median home value in Arnold, MO is $277,732 — up 3.5% over the past year. Homes sell for a median $289,000 after a median 11 days on market. Typical rent runs $1,861/month. 10 schools serve the area (NCES). FEMA's National Risk Index rates the county's overall natural-hazard risk Relatively Moderate, with strongwind, lightning, tornado the top-rated hazards. Cost of living is 10.5% below the US average (BEA, metro/state-level).
$277,732
Median home value
+3.5%
1-year change
11
Median days on market
Relatively Moderate
Hazard risk (county)
Home values & appreciation
- Median home value
- $277,732
- 1-year appreciation
- +3.5%
- 3-year appreciation
- +11.0%
- 5-year appreciation
- +25.0%
- 10-year appreciation
- +63.1%
- All-time peak (2026-07)
- $277,732
- House Price Index (state)
- 403.5 (+4.3% YoY)
Sources: home value index (ZIP-level) · FHFA House Price Index (state-level)
Market activity
- Median sale price
- $289,000
- Median list price
- $285,000
- Median price per sqft
- $175
- 1-year sale-price change
- +11.2%
- Median days on market
- 11 days
- Homes sold (recent period)
- 89
- For-sale inventory
- 67
- Sale-to-list ratio
- 102.9%
- Active listings
- 31
- 1-year forecast
- +1.4%
- Days to pending
- 18 days
- New listings (monthly)
- 44
Source: recent area sales and market data (ZIP-level)
Rents
- Typical rent
- $1,861/mo
- Studio fair-market rent
- $950/mo
- 1BR fair-market rent
- $990/mo
- 2BR fair-market rent
- $1,210/mo
- 3BR fair-market rent
- $1,560/mo
- 4BR fair-market rent
- $1,800/mo
Sources: market rent index (ZIP-level) · HUD Fair Market Rents (metro/county-level, 40th-percentile regulatory reference)
Affordability
- Cost of living index (Low)
- 89.5 (100 = US avg)
- Electricity rate (state-level)
- 13.5¢/kWh
- Natural gas rate (state-level)
- $14.90/MCF
- 30-year mortgage rate (national)
- 6.66%
- 15-year mortgage rate (national)
- 6.00%
Sources: BEA Regional Price Parities (metro/state-level) · EIA energy rates (state-level) · Freddie Mac PMMS (national)
Schools
- Total schools
- 10
- Elementary schools
- 6
- Middle schools
- 2
- High schools
- 1
- Schools include
- FOX ELEM., FOX MIDDLE, MERAMEC HEIGHTS ELEM., RIDGEWOOD MIDDLE, ROCKPORT HEIGHTS ELEM.
Source: NCES school directory, 2022-23 (school-address-based)
Natural hazards & flood risk
- Overall hazard risk (county)
- Relatively Moderate
- Top hazards (county)
- strongWind, lightning, tornado, coldWave, earthquake
- Notable hazard ratings (county)
- coldWave: Relatively Moderate · earthquake: Relatively Moderate · hail: Relatively Moderate · heatWave: Relatively Moderate · iceStorm: Relatively Moderate · inlandFlooding: Relatively Moderate
- FEMA flood zone
- A20
- Flood risk level
- High
- Wildfire risk to homes (county)
- Higher than 40% of US counties
- Buildings in wildfire direct-exposure zone
- 57.6%
- Radon potential (county)
- Moderate radon potential — EPA Zone 2 of 3
- EPA Superfund (NPL) sites within 5 mi
- 1
- Nearest Superfund site
- Minker/Stout/Romaine Creek (4.8 mi)
Sources: FEMA National Risk Index (county-level) · FEMA flood data (ZIP-level) · USDA Forest Service Wildfire Risk to Communities (county-level) · EPA radon zones + Superfund NPL
Climate (30-year normals)
- Annual precipitation
- 45.4 in
- USDA plant hardiness zone
- 7a (extreme annual low 0 to 5°F)
Sources: NOAA Climate Normals (30-year, nearest-station) · USDA Plant Hardiness Zone Map (2023)
Air quality
- Air quality rating
- Good
- Median AQI (annual)
- 44
- Days with Good air quality
- 225
- Days with Moderate air quality
- 121
- Days with Unhealthy air quality
- 2
- Highest AQI recorded (year)
- 185
Source: EPA air quality data (nearest monitoring station, annual)
Walkability & transit
- Walkability index
- 9.5 / 20
- Transit service frequency
- -99,999
- Jobs reachable by car (30 min)
- 72,876
- Jobs reachable by transit (45 min)
- 70,743
Source: EPA Smart Location Database (metropolitan block groups)
Amenities
- National parks within ~60 mi
- 3
- Nearest national park
- Ulysses S Grant National Historic Site (9 mi)
- National parks include
- Ulysses S Grant National Historic Site, Gateway Arch National Park, Ste. Geneviève National Historical Park
- Airports within 30 mi
- 19
- Nearest airport
- Arnold Ultralightport (3 mi)
- Nearest major airport
- Spirit of St Louis Airport (SUS) (21 mi)
- Hospitals nearby (~15 mi)
- 16
- Hospitals include
- TOUCHETTE REGIONAL HOSPITAL INC, MERCY HOSPITAL ST LOUIS, BARNES-JEWISH WEST COUNTY HOSPITAL
- Avg hospital rating (CMS)
- 3.3 / 5
- Best hospital rating nearby (CMS)
- 5.0 / 5
- Solar radiation rating
- Fair (4.2 kWh/m²/day)
Sources: National Park Service · FAA airport data · CMS hospital data · DOE/NREL (proximity-based)
Migration
- Net migration (county)
- +778 tax filers
Source: IRS county-to-county migration data (county-level, ~12-month lag)
Housing stock
- Median year housing built
- 1,982
- Housing built before 1970
- 31.2%
- Housing built 2000 or later
- 14.7%
- Median annual property tax
- $1,827
- Mean commute to work
- 26 min
- Households with broadband internet
- 78.6%
Source: Census ACS 5-year estimates (ZIP-level)
Employment & development
- Total county employment
- 39,961
- Average weekly wage
- $920
- Top industries (by employment)
- Health Care, Accommodation & Food, Construction
- Annual residential building permits (county)
- 686
Sources: BLS QCEW (county-level) · Census Building Permits (county-level)
How it compares
| Arnold | State median | US median | |
|---|---|---|---|
| Median home value | $277,732 | $244,663 | $289,727 |
| Median sale price | $289,000 | $249,900 | $325,000 |
| Median days on market | 11 days | 40 days | 51 days |
| Typical rent | $1,861/mo | $1,417/mo | $1,808/mo |
| Median annual property tax | $1,827 | $1,136 | $2,006 |
State and US medians are computed across all US ZIP codes with sufficient public-data coverage, from the same sources as the figures above.
Area data compiled from public government, academic, and industry research feeds. Data sources →
Common questions
- What is the median home value in Arnold, MO?
- $277,732.
- What is the median sale price in Arnold, MO?
- $289,000.
- How long do homes take to sell in Arnold, MO?
- Median days on market: 11 days.
- What is typical rent in Arnold, MO?
- Typical rent: $1,861/month.
- What is the natural-hazard risk in Arnold, MO?
- Overall risk: Relatively Moderate (FEMA NRI, county-level). Top hazards: strongWind, lightning, tornado, coldWave, earthquake.
- Is Arnold, MO in a flood zone?
- High (FEMA NFIP). FEMA flood zone A20.
- What is the wildfire risk in Arnold, MO?
- Risk to homes is higher than 40% of US counties (USDA Forest Service Wildfire Risk to Communities, county-level).
- What is the radon potential in Arnold, MO?
- Moderate radon potential — EPA Zone 2 of 3, county-level. EPA recommends testing every home regardless of zone.
- Are there Superfund sites near Arnold, MO?
- 1 current or proposed National Priorities List site within 5 miles (EPA). Nearest site: Minker/Stout/Romaine Creek, 4.8 mi.
- How many schools serve Arnold, MO?
- 10 schools (6 elementary, 2 middle, 1 high) (NCES, 2022-23).
- Is Arnold, MO walkable?
- Walkability index: 9.5/20 (EPA Smart Location Database).
- What is the air quality in Arnold, MO?
- Good. Median AQI: 44. (EPA AQI).
- What is the cost of living in Arnold, MO?
- Regional Price Parity: 89.5 (100 = US average) (Low) (BEA RPP, metro/state-level).
ZIP code for Arnold
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Data last updated
Most recent source refresh: Sep 2026. See all data sources →