Smithville is a city in Clay County, Missouri, home to about 10,705 people across 16 square miles. Its ZIP code is 64089, and parts of 64164 are in Smithville too.
Homes sold for a median of $196 per square foot in the three months ending August 2026, a seller’s market.
Mostly Smithville; also Paradise
Mostly Kansas City; part is in Smithville
Each card is that ZIP code’s whole market, including any part outside Smithville. Seller’s market: under 4 months of supply; buyer’s market: over 6. Methodology
We’re writing up Smithville’s story and what everyday life there is like, for people thinking about moving in.
Are you a local agent who knows Smithville well? Agents who advertise here will be able to write the guide. Advertise on OfferBacked
| Nearest major airport | Kansas City International Airport (MCI)10 miles away |
|---|---|
| Nearest city of 250,000+ | Kansas City, MO18 miles away |
| Nearest city of 1 million+ | Chicago, IL398 miles away |
Straight-line distances from the center of Smithville; driving is longer.
Source: Airports from OurAirports (scheduled passenger service); city centers and populations from the U.S. Census Bureau.
Source: Members of Congress from the congress-legislators project; districts from the Census Bureau’s relationship files; governor and mayor from Wikidata.
Smithville had 10,406 residents in the 2020 census, up 89% since 2000.
It’s the 82nd largest of 1,060 towns in Missouri by population.
Clay County grew from 18,903 residents in 1900 to 253,335 in 2020.
Clay County, 1900–2020
Source: U.S. Census Bureau decennial censuses (counties 1900–1990 from the Bureau’s historical county file).
Average highs peak around 87°F in summer, and winter lows average 16°F. About 40.3 inches of rain and melted snow fall in a typical year.
Source: NOAA 1991–2020 climate normals, Smithville Lake, MO weather station (about a mile away).
118,402 jobs at 5,654 businesses in Clay County. The biggest industries by employees:
Source: U.S. Census Bureau County Business Patterns 2023 (private employers; jobs counted where people work).
48 doctors and other health care providers list an office in Smithville.
Nearest hospitals
Providers with an office here
| Primary care doctors | 6 |
|---|---|
| Specialist doctors | 2 |
| Dentists | 5 |
| Nurse practitioners and physician assistants | 12 |
| Mental health providers | 12 |
| Physical and occupational therapists | 6 |
| Optometrists | 1 |
| Chiropractors | 4 |
| Pharmacies | 4 |
Source: Hospitals from CMS Hospital General Information (ratings are CMS overall star ratings); straight-line distances; providers from the CMS National Plan and Provider Enumeration System (NPPES), by practice address and primary specialty.
Parks (14 nearby)
Grocery stores (1 nearby)
Pharmacies (1 nearby)
Libraries (1 nearby)
Counts are within about 3 miles of the center of town.
Source: Map data © OpenStreetMap contributors (openstreetmap.org/copyright), as mapped by volunteers; it can miss places or include closed ones.
Public schools here are run by Smithville R-II. Check each district’s attendance zones for a specific address.
| School | Grades | Students | Type | Distance |
|---|---|---|---|---|
| Maple ElementarySmithville | Pre-K–6 | 358 | Public | 1.0 mi |
| Eagle Heights ElementarySmithville | K–6 | 492 | Public | 3.0 mi |
| Horizon ElementarySmithville | K–6 | 448 | Public | 1.6 mi |
| Smithville MiddleSmithville | 7–8 | 371 | Public | 1.5 mi |
| Smithville HighSmithville | 9–12 | 845 | Public | 1.4 mi |
| School | Grades | Students | Affiliation | Distance |
|---|---|---|---|---|
| Smithville Montessori Academy IISmithville | Pre-K–K | 33 | Nonsectarian | 2.8 mi |
Source: U.S. Department of Education, NCES: Common Core of Data (2024-2025) for public schools; Private School Universe Survey (2023-2024) for private schools. Listed by address; we don’t rate schools.
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Shares ZIP codes with Kansas City and Paradise.
Town boundaries don’t always match ZIP codes: a ZIP code can cross into neighboring towns, and a town can share a ZIP code with its neighbors. Facts describe the town itself; market figures describe whole ZIP codes.