LatestCoverageAll 50 states, D.C. and five territories now on the ledger|NewPuerto Rico's 78 municipios ledgered, municipio by municipio|FeatureAssessment appeal workspace — build a filing package from your own evidence|FeatureLiving reports — versioned, re-runnable, exportable|DevelopersMetered REST gateway · issued keys · signed webhooks|Live market readings · refreshed on loadAlbuquerque · NMMedian List$360K+2.5%|Austin · TXMedian List$290K-3.5%|Baltimore · MDMedian List$265K+1.1%|Bernalillo County · NMMedian List$364K+2.7%|Bexar County · TXMedian List$303K+3.7%|Boston · MAMedian List$859K+3.4%|Charlotte · NCMedian List$402K+1.2%|Chicago · ILMedian List$426K+9.3%|Clark County · NVMedian List$447K+0.1%|Columbus · OHMedian List$300K+0.7%|Cook County · ILMedian List$348K+5.1%|Dallas · TXMedian List$449K-0.1%|Davidson County · TNMedian List$465K-1.1%|Denver · COMedian List$618K+5.0%|Detroit · MIMedian List$321K-2.7%|Duval County · FLMedian List$297K-2.3%|El Paso · TXMedian List$260K+3.7%|Fort Worth · TXMedian List$330K-1.5%|Franklin County · OHMedian List$320K+3.2%|Fresno · CAMedian List$375K+2.1%|Harris County · TXMedian List$327K+0.6%|Houston · TXMedian List$340K+0.6%|Indianapolis · INMedian List$250K+2.7%|Jackson County · MOMedian List$275K+7.0%|Jacksonville · FLMedian List$312K-1.4%|Jefferson County · KYMedian List$248K-4.3%|Kansas City · MOMedian List$310K+3.1%|King County · WAMedian List$850K-4.0%|Las Vegas · NVMedian List$440K-1.1%|Los Angeles · CAMedian List$950K-0.5%|Louisville · KYMedian List$280K+1.8%|Maricopa County · AZMedian List$458K-0.4%|Marion County · INMedian List$259K+3.7%|Mecklenburg County · NCMedian List$407K-5.3%|Memphis · TNMedian List$209K+4.7%|Mesa · AZMedian List$490K-0.9%|Milwaukee · WIMedian List$243K+5.7%|Multnomah County · ORMedian List$518K-1.2%|Nashville · TNMedian List$480K+1.0%|New York · NYMedian List$899K+0.5%|Oklahoma City · OKMedian List$275K-0.4%|Oklahoma County · OKMedian List$259K-0.7%|Philadelphia · PAMedian List$249K+0.3%|Phoenix · AZMedian List$480K0.0%|Pima County · AZMedian List$373K+0.9%|Portland · ORMedian List$640K-6.0%|Sacramento · CAMedian List$510K+4.0%|San Antonio · TXMedian List$236K-1.2%|San Diego · CAMedian List$994K+4.2%|San Francisco · CAMedian List$1.6M+14.9%|San Jose · CAMedian List$1.3M-11.9%|Santa Clara County · CAMedian List$1.3M+0.1%|Seattle · WAMedian List$874K-2.8%|Shelby County · TNMedian List$259K-2.4%|Suffolk County · MAMedian List$857K+7.3%|Tarrant County · TXMedian List$385K-1.2%|Travis County · TXMedian List$497K-5.3%|Tucson · AZMedian List$324K-0.9%|Wayne County · MIMedian List$160K0.0%|LatestCoverageAll 50 states, D.C. and five territories now on the ledger|NewPuerto Rico's 78 municipios ledgered, municipio by municipio|FeatureAssessment appeal workspace — build a filing package from your own evidence|FeatureLiving reports — versioned, re-runnable, exportable|DevelopersMetered REST gateway · issued keys · signed webhooks|Live market readings · refreshed on loadAlbuquerque · NMMedian List$360K+2.5%|Austin · TXMedian List$290K-3.5%|Baltimore · MDMedian List$265K+1.1%|Bernalillo County · NMMedian List$364K+2.7%|Bexar County · TXMedian List$303K+3.7%|Boston · MAMedian List$859K+3.4%|Charlotte · NCMedian List$402K+1.2%|Chicago · ILMedian List$426K+9.3%|Clark County · NVMedian List$447K+0.1%|Columbus · OHMedian List$300K+0.7%|Cook County · ILMedian List$348K+5.1%|Dallas · TXMedian List$449K-0.1%|Davidson County · TNMedian List$465K-1.1%|Denver · COMedian List$618K+5.0%|Detroit · MIMedian List$321K-2.7%|Duval County · FLMedian List$297K-2.3%|El Paso · TXMedian List$260K+3.7%|Fort Worth · TXMedian List$330K-1.5%|Franklin County · OHMedian List$320K+3.2%|Fresno · CAMedian List$375K+2.1%|Harris County · TXMedian List$327K+0.6%|Houston · TXMedian List$340K+0.6%|Indianapolis · INMedian List$250K+2.7%|Jackson County · MOMedian List$275K+7.0%|Jacksonville · FLMedian List$312K-1.4%|Jefferson County · KYMedian List$248K-4.3%|Kansas City · MOMedian List$310K+3.1%|King County · WAMedian List$850K-4.0%|Las Vegas · NVMedian List$440K-1.1%|Los Angeles · CAMedian List$950K-0.5%|Louisville · KYMedian List$280K+1.8%|Maricopa County · AZMedian List$458K-0.4%|Marion County · INMedian List$259K+3.7%|Mecklenburg County · NCMedian List$407K-5.3%|Memphis · TNMedian List$209K+4.7%|Mesa · AZMedian List$490K-0.9%|Milwaukee · WIMedian List$243K+5.7%|Multnomah County · ORMedian List$518K-1.2%|Nashville · TNMedian List$480K+1.0%|New York · NYMedian List$899K+0.5%|Oklahoma City · OKMedian List$275K-0.4%|Oklahoma County · OKMedian List$259K-0.7%|Philadelphia · PAMedian List$249K+0.3%|Phoenix · AZMedian List$480K0.0%|Pima County · AZMedian List$373K+0.9%|Portland · ORMedian List$640K-6.0%|Sacramento · CAMedian List$510K+4.0%|San Antonio · TXMedian List$236K-1.2%|San Diego · CAMedian List$994K+4.2%|San Francisco · CAMedian List$1.6M+14.9%|San Jose · CAMedian List$1.3M-11.9%|Santa Clara County · CAMedian List$1.3M+0.1%|Seattle · WAMedian List$874K-2.8%|Shelby County · TNMedian List$259K-2.4%|Suffolk County · MAMedian List$857K+7.3%|Tarrant County · TXMedian List$385K-1.2%|Travis County · TXMedian List$497K-5.3%|Tucson · AZMedian List$324K-0.9%|Wayne County · MIMedian List$160K0.0%|
Property-class scope

The story of this market

The typical home in ZIP 63021 sells for about $425,000, or $198 per square foot.

Prices are up +4.2% from a year ago, so sellers still have some momentum. Homes take about 14 days to sell, which is fast. HUD's fair market rent for a two-bedroom is $1,423 a month.

ZIP market report · consumer edition · quarterly refresh
Track this ZIP

ZIP 63021 — Ballwin

St. Louis County →St. Louis marketrefreshed Sep 27, 2026next refresh Oct 27, 2026
Market mood · cautiously optimistic

The 63021 housing market remains competitive with low inventory and steady price appreciation, driven by high demand for suburban family housing. While sales volume has normalized, the market continues to see strong interest from buyers attracted to the area's school districts and quality of life.

Who this ZIP fits

This ZIP is ideal for family buyers seeking high-quality schools and suburban amenities, as well as established professionals looking for a stable, community-oriented environment.

Parent geography
Aerial view · ZIP boundaries2020 Census ZCTA boundary over current aerial imagery
Leaflet Imagery © Esri, Maxar, Earthstar Geographics
Land area · 56.5 km²Water area · 0.4 km²U.S. Census Bureau TIGERweb — 2020 Census ZCTA5 boundary
Median sale price
$425,000
+4.2% year over year
Corroborated · 1 anchor · 0% off nearest
Days on market
14 days
Active listings
34
Listings with price cuts
12%
share of active listings
Sale-to-list ratio
99.2%
of asking price
ZIP Market ScoreZIP-SCORE-1.3 · 4/4 sections graded
84
Composite · average of graded sections
Computed only from this report's published readings — sections without data are excluded, never estimated.
71
Growth/100

Median prices moved up 4.2% year over year.

94
Liquidity/100

Homes spend a median of 14 days on market with 2.1 months of supply — a fast-moving market.

78
Momentum/100

12% of listings have cut prices · homes sell at 99.2% of asking — demand is running ahead of supply.

91
Safety & stability/100

no recorded foreclosure-ledger notices (0.0 per 10,000 residents) · unemployment 4.1% · poverty 5.4% — a stable, low-distress profile.

Median price · ten-year history

Researched annual trajectory for this ZIP, from published historical series

2015201620172018201920202021202220232024202520272029$240,000$320,000$400,000$480,000$560,000

Solid: researched ten-year history · dotted: 1 / 3 / 5-year projection extended from the historical 5.4%/yr trend — a deterministic estimate, not a published forecast or guarantee.

Property tax · ten-year history

Median annual property tax paid on this ZIP's residential parcels

2015201620172018201920202021202220232024202520272029$3,150$4,200$5,250$6,300$7,350

Solid: researched ten-year history · dotted: 1 / 3 / 5-year projection extended from the historical 5.5%/yr trend — a deterministic estimate, not a published forecast or guarantee.

Census trends · population flowsACS 2019-2023 5-year estimates
Population change
-0.2%

versus the prior ACS vintage

Population base
55,666

ZCTA 63021, St. Louis County MO

Immigration & foreign-bornU.S. Census Bureau ACS · ZIP granular
Foreign-born share
10.7%
Foreign-born residents
5,936
Naturalized (of foreign-born)
61.5%
Non-citizens (of population)
4.1%
Entered 2010 or later (of foreign-born)
31%
World region of birth (foreign-born)
Asia
70.5%
Americas
17.1%
Europe
8.5%
Africa
3.6%
Oceania
0.2%

ACS 2024 5-year estimates. Aggregate published statistics for this ZIP — never individual records, and never an attribute of any individual property or resident.

Area context
Crime & safety

The area generally reports lower crime rates compared to the broader St. Louis metropolitan region, with safety trends remaining stable.

Schools & education

The ZIP is served by highly-rated public school districts, including Parkway and Rockwood, which are consistently recognized for academic performance.

Environmental & hazard

The area faces standard Midwestern climate risks, including occasional severe thunderstorms and wind events; flood risk is localized to specific low-lying areas near creeks.

Growth & development

Economic momentum is driven by proximity to major St. Louis County employment hubs and established suburban commercial corridors, with steady infill development.

Taxation

Property taxes are assessed by St. Louis County based on market value, with rates determined by the aggregate of school, municipal, and special district levies.

Transportation & commute

Residents primarily commute by car via I-64/US-40 and MO-141, with typical drive times to downtown St. Louis ranging from 30 to 45 minutes depending on traffic.

Recreation & amenities

The area features extensive access to parks and greenbelts, including Castlewood State Park and various municipal golf courses, alongside robust retail shopping centers.

Rental market

The rental market is characterized by low vacancy pressure and steady demand, with a mix of single-family rentals and established apartment communities.

Economy & employers

The economy is anchored by a mix of healthcare, professional services, and retail, with significant employment access provided by the nearby I-64 corridor.

Transportation & infrastructure

Transportation is heavily reliant on private vehicles, with major highway access via I-64 and MO-141; public transit options are limited compared to the urban core.

Development pipeline

Development is primarily focused on residential infill and the modernization of existing commercial retail centers.

County appraisal district

St. Louis County utilizes a biennial assessment cycle to determine property values for taxation purposes.

Special districts

Parcels are subject to various special districts, including fire protection, library, and school districts, which are reflected in the total tax bill.

Insurance & hazard market

Property insurance premiums are influenced by regional exposure to severe weather, including wind and hail, consistent with the broader St. Louis market.

Discovery profileACS 2019-2023 5-year estimates
Census profile · ZCTA 63021, St. Louis County MO
Population
55,666
Median age
40.7 yrs
Owner-occupancy
81%
Median home value
$385,000
Median gross rent
$1,450
Median household income
$108,500
Median year built
1983
Vacancy rate
4.2%
Renter share
19%
Owner cost burden
22%
Renter cost burden
38%
Population change
-0.2%
Work-from-home share
28%
Mean commute
26.5 min
Bachelor's or higher
58%
Unemployment
4.1%
Poverty rate
5.4%
Avg household size
2.45
White
82.68%
Asian
8.7%
Hispanic
3.78%
Black
3.05%
Other
1.79%

Data retrieved from data.census.gov ZCTA 63021 profiles.

Public schools with an address here · 2

Public schools whose reported address is in this area (NCES). Not attendance boundaries — schools that serve residents may sit outside it. Check the district's address locator for assignment.

Parkway West High SchoolHighAParkway C-2Highly rated secondary school.
Rockwood Summit High SchoolHighARockwood R-VIStrong academic and athletic programs.
School districts
Parkway C-2AccreditedLarge district serving a significant portion of the ZIP.
Rockwood R-VIAccreditedMajor district with high performance metrics.
Utilities & services
ElectricAmeren MissouriPrimary provider for the region.
Natural GasSpireStandard service provider.
InternetCharter Spectrum/AT&TBroadband availability varies by location.
Major employers & industries
Mercy HealthHealthcareMajor regional employer.
BayerLife SciencesSignificant regional presence.
Amenities & attractions2 retained amenities · 1 development on the horizon
Inside this ZIP
Castlewood State Park
Park

Large state park offering hiking, biking, and river access.

Ballwin Golf Course
Golf

Public 18-hole course serving the local community.

On the horizon · announced & under construction
West County Center ExpansionRetailOngoingContinuous upgrades to regional shopping anchor.
Sources · 4 cited

Key-figure check: no independent anchor retained yet — first-researched cycles establish the anchor baseline this pass.