Arnold is a city of about 21,000 people in northeastern Jefferson County, Missouri, just south of the St. Louis County line near where the Meramec River meets the Mississippi. Its housing is newer than most of the inner-ring St. Louis County markets, it is served by the Fox C-6 School District, and I-55, US 61 and MO 141 all reach it. Here is the local picture: the county difference, the schools, the commute and the parks.
About Arnold, Missouri
Arnold is in Jefferson County, not St. Louis County. That is the single most useful thing to know before you shop here. The city covers 11.53 square miles in the northeastern corner of the county, directly south of the St. Louis County line, near the confluence of the Meramec and Mississippi rivers. The ZIP code is 63010.
Because the address is in Jefferson County, property assessment and real estate records are handled by the Jefferson County Assessor rather than St. Louis County. The county runs an online property search and a GIS Property Viewer, real estate is reassessed in odd-numbered years, and the assessor office phone is 636-797-5466.
Arnold’s housing is newer than most of the inner-ring St. Louis County markets. The median home was built in 1977, only 1.8% of units date to before 1940, and about 41% were built before 1970. The 1960s and the 1990s are the two biggest building decades. About 80% of homes are owner-occupied and about 79% are single-family detached.
Source: U.S. Census Bureau, American Community Survey 2020-2024 5-year estimates, via Census Reporter. Land area: U.S. Census Bureau 2024 Gazetteer place file. Highways and city description: City of Arnold (arnoldmo.org). Assessor and reassessment: Jefferson County (jeffcomo.gov).
What Homes Sell For in Arnold
Over the past 12 months (October 2025 to September 2026), 414 homes sold in the MARIS Arnold market area. More than half of them (59%) closed between $200,000 and $350,000, and the median sale landed between $250,000 and $300,000.
| Segment | Range |
|---|---|
| More than half of sales (59%) | $200,000 to $350,000 |
| Median sale | $250,000 to $300,000 |
| Under $200,000 | 14% of sales |
| Over $350,000 | 28% of sales |
Source: MARIS MLS closed residential sales (rentals excluded): single-family, condo, townhouse and villa, city of Arnold, Jefferson County, October 2025 to September 2026. This is a market-wide range, not a valuation for any specific home.
Thinking of selling? Get an estimate of your home’s value, or ask Craig for a current comparable sales pull.
Schools Serving Arnold
Arnold is served by the Fox C-6 School District. The district office is at 745 Jeffco Blvd., Arnold, MO 63010, and the phone is 636-296-8000. Fox C-6 reports 22 facilities and more than 10,500 students from Pre-K through 12th grade across its whole service area, which extends well beyond the Arnold city limits.
Fox C-6 schools with an Arnold address
- Don Earl Early Childhood Center, 849 Jeffco Blvd.
- Fox Elementary, 739 Jeffco Blvd.
- Lone Dell Elementary, 2500 Tomahawk
- Meramec Heights Elementary, 1340 W. Outer 21 Road
- Richard Simpson Elementary, 3585 Vogel Road
- Rockport Heights Elementary, 3871 Jeffco Blvd.
- Sherwood Elementary, 1769 Missouri State Road
- Fox Middle School, 743 Jeffco Blvd.
- Ridgewood Middle School, 1401 Ridgewood School Rd.
- Fox Senior High School, 751 Jeffco Blvd.
Other Fox C-6 schools carry Imperial, Fenton or Barnhart addresses and sit outside Arnold.
How to confirm the schools for an address
Fox C-6 publishes per-school attendance boundary maps as high-resolution PDFs on its Bus Routes and Boundary Maps page. On those maps the green shape is the attendance boundary and the red shape is a projected no-transportation zone. There is no interactive address lookup, so the district asks anyone with a boundary question to contact the home school or the district office at 636-296-8000. Confirm the assignment for a specific address before you make an offer.
Sources: Fox C-6 School District (foxc6.org), including its school directory and its Bus Routes and Boundary Maps page.
Getting Around: Commute Times
| Stat | Detail |
|---|---|
| Average one-way commute | 27.2 minutes |
| Drive alone to work | About 85% of workers |
| Work from home | About 8% of workers |
| Main roads | I-55 (two interchanges), US 61, MO 141, Jeffco Boulevard, Telegraph Road, Missouri State Road |
Source: U.S. Census Bureau, American Community Survey 2020-2024 5-year estimates, via Census Reporter. Highways: City of Arnold (arnoldmo.org).
Without traffic, downtown St. Louis is about 19 miles and 29 minutes away, and Clayton is about 19 miles and 34 minutes.
Drive times: OSRM routing, no-traffic estimates. Rush hour adds to both.
There is no MetroLink station in Arnold. MetroLink’s 38 stations are in the City of St. Louis, St. Louis County and St. Clair County, Illinois, and none of them is in Jefferson County.
Source: Metro Transit (metrostlouis.org) and the MetroLink station list.
Parks and Places Residents Actually Use
The city runs nine parks: Archery Park, Arnold City Park, the Arnold Jaycees Skate Park, Ferd B. Lang Park, Flamm City Park, the Paw Parks, Pomme Creek Park, Strawberry Creek Nature Area and Teszars Woods Conservation Area. All of them open a half hour before sunrise and close a half hour after sunset.
- Arnold City Park (#1 Bradley Beach Road, off Jeffco Blvd.): 68 acres with an 8-acre fishing lake, four pavilions with electricity and BBQ pits, restrooms, a playground, a paved half-mile walking trail, two dirt multipurpose fields, two horseshoe pits and volleyball poles.
- Ferd B. Lang Park (1820 Old Lemay Ferry Road): 25 acres with a playground, hiking trails, two grass multipurpose fields, five horseshoe pits, three sand volleyball courts, a skate park, a half basketball court, dog areas, restrooms and five reservable pavilions, the largest seating 175.
- Flamm City Park (Telegraph Road at the Meramec River): 36 acres with a boat launch ramp, paved parking for vehicles and boat trailers and hiking trails. It adjoins David R. Collins Park, Teszars Woods Conservation Area and Pomme Creek.
- Strawberry Creek Nature Area: a preserved natural area with a pond, four walking trails, a pavilion seating 35 near the entrance and a portable restroom. No electricity or running water.
- Arnold Recreation Center (1695 Missouri State Road, 636-282-2380): an indoor pool with a river and vortex feature, a bubble bench, a slide and a children’s play area, plus a weight room and fitness center, a three-lane walking track and a two-court gym.
Annual events
- Arnold Days, held at Arnold City Park each September: carnival rides, food and craft vendors, pro wrestling, live bands, a fireworks and laser show around 9:30 p.m., a children’s fishing tournament, a car show, and a parade Sunday at 1:00 p.m.
- Arnold Farmers Market, Saturday mornings at Arnold City Park from the first Saturday in May through the last Saturday in October in 2026, except the Saturday of Arnold Days. Contact 636-275-6987.
Source: City of Arnold Parks and Recreation (arnoldmo.org).
Who Arnold Is Really For
- Buyers who want newer construction than the inner-ring St. Louis County markets
- Buyers who want a single-family house on an owner-occupied street
- Commuters who use I-55, US 61 or MO 141
- Anyone who wants river access, a fishing lake and trails inside the city limits
Thinking of selling? Get an estimate of your home’s value, or ask Craig for a current comparable sales pull.
Arnold Real Estate FAQ
What county is Arnold, MO in?
Jefferson County, not St. Louis County. Arnold sits in the northeastern corner of Jefferson County, directly south of the St. Louis County line. Property assessment and real estate records go through the Jefferson County Assessor, 636-797-5466.
What school district serves Arnold, MO?
The Fox C-6 School District, with its office at 745 Jeffco Blvd. in Arnold. Fox C-6 publishes PDF attendance boundary maps rather than an address lookup, so call the district at 636-296-8000 to confirm the schools for a specific address.
How far is Arnold from downtown St. Louis?
About 19 miles, or roughly 29 minutes without traffic. Clayton is about 19 miles and 34 minutes.
Is there a MetroLink station in Arnold?
No. There is no MetroLink station anywhere in Jefferson County. The system’s 38 stations are in the City of St. Louis, St. Louis County and St. Clair County, Illinois.
How old are the homes in Arnold?
The median home was built in 1977. Only about 1.8% of units date to before 1940 and about 41% were built before 1970, so the stock is newer than most of south St. Louis County.
Work With Single Tree Team in Arnold
Single Tree Team is Craig Ziegel, a real estate agent licensed in Missouri and Illinois since 2011, brokered by eXp Realty. Craig helps buyers and sellers across the south metro, including Arnold and the rest of northeastern Jefferson County, and can pull current comparable sales for any street.
