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ZIP Code · MO

ZIP 63021

Part of Ballwin, MO
Pop. 55,666·Saint Louis County·31st most expensive ZIP in Missouri
Median rent (all units)
$1,671/mo
Year-over-Year
+0.1%
Month-over-Month
+0.2%
vs US Median
-$294
Stable (Monthly)
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Most AffordableMost Expensive
ZIP 63021 · $1,671
More affordable than 61% of US ZIP codes · National median $1,965/mo
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Medians by bedroom

Rent by unit size

Studio
$1,130
1 BR
$1,180
2 BR
$1,440
3 BR
$1,850
4 BR+
$2,140
Research median
$1,440/mo

Bedroom estimates are gross rents that include essential utilities (electricity, water, gas, sewer, trash).

Rent trends

12-month history

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Last updated: July 20, 2026

Annual cost
$20,052/yr
At $1,671/mo median
Location
StateMO
CountySaint Louis County
Rent Market Meter
Balanced Market
Renter's MarketBalancedLandlord's Market
Rents are roughly steady, with neither renters nor landlords holding a strong edge right now.
Based on rent-price momentum (+0.1% YoY, +0.2% MoM), not inventory.
Demographics

Who lives here

ZIP 63021 (Ballwin, MO) is majority owner-occupied, has a median income above the national average, 63% of residents hold a bachelor's degree or higher.

Population
55,666
Median income
$120,177
Median age
40.7
Renters
19.3%
Age distribution
22.2%
19.4%
27.3%
13.1%
18%
Under 1822.2%
18–3419.4%
35–5427.3%
55–6413.1%
65+18%
Gender
48.9%
51.1%
Male48.9%
Female51.1%
Race & ethnicity
76.3%
White76.3%
Black2.6%
Hispanic5.6%
Asian10.3%
Other5.2%
Education (25+)
13.3%
21.4%
63%
No HS diploma2.3%
HS diploma13.3%
Some college21.4%
Bachelor's+63%
Housing tenure
80.7%
19.3%
Owner80.7%
Renter19.3%

Source: U.S. Census Bureau · ACS 2024 5-Year Estimates

2021 vs 2026

How ZIP 63021 in Ballwin, MO has changed in 5 years

Income
$98,804 → $120,177
up 21.6%
Population
56,646 → 55,666
down 1.7%
Renter share
19.6% → 19.3%
-0.3 pts
Bachelor's+
59.3% → 63%
+3.7 pts

Median household income climbed from $98,804 to $120,177 between 2021 and 2024, a 21.6% shift. Census counts show ZIP 63021 in Ballwin, MO losing about 980 residents over the five-year window, down 1.7% on net. Bachelor's-degree-or-higher attainment moved from 59.3% to 63% across the same window.

Community

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Local insights

Tips for renters in ZIP 63021

About renting in ZIP 63021

Last updated: July 20, 2026

ZIP code 63021 covers Ballwin, MO. The median rent here is $1,671/mo as of July 2026. A 1-bedroom rents for a median of $1,180/mo. A 2-bedroom rents for a median of $1,440/mo.

At 17% of local median household income ($120,177/yr), ZIP 63021 ranks as affordable compared to the national benchmark of 30%. Rents have increased 0.1% over the past year.

FAQ

Frequently asked questions

How much is rent in ZIP code 63021?

As of July 20, 2026, the median monthly rent in ZIP 63021 (Ballwin, MO) is $1,671. This is based on aggregated data from public sources and community submissions.

How does ZIP 63021 rent compare to the US average?

ZIP 63021's median rent of $1,671/mo is $294 (15%) below the US national median of $1,965/mo.

How does ZIP 63021 compare to other ZIPs in Missouri?

ZIP 63021 is one of the pricier ZIP codes in Missouri, ranking #31 out of 136 ZIPs tracked at $1,671/mo.

How much income do you need to rent in ZIP 63021?

To keep rent at or below 30% of gross income, you would need to earn at least $67,000/year (~$32/hour full-time) to afford the median rent of $1,671/mo in ZIP 63021. The local median household income is $120,177/yr, meaning the typical household meets that threshold.

Is rent going up or down in ZIP 63021?

Rent in ZIP 63021 has been relatively stable over the past year, with a 0.1% change year over year as of July 20, 2026.

Is ZIP 63021 an affordable place to rent?

ZIP 63021 is considered very affordable for renters. At $1,671/mo, rent takes approximately 17% of the local median household income ($120,177/yr). The standard benchmark is 30%. ZIP 63021 falls comfortably within that range.

What percentage of ZIP 63021 residents rent vs. own?

According to Census data, approximately 19.3% of ZIP 63021 households are renters, while 80.7% are owner-occupied. ZIP 63021 leans toward homeownership, which can mean a smaller rental inventory.

How does ZIP 63021 compare to the rest of Ballwin?

ZIP 63021 is more affordable than Ballwin overall. At $1,671/mo, it's $51 below the Ballwin citywide median of $1,722/mo.

When was rent data for ZIP 63021 last updated?

Rent data for ZIP 63021 reflects July 20, 2026. RentDataNow refreshes all data monthly using public and private datasets.
Income Affordability
17%
VERY AFFORDABLE

At $1,671/mo, rent takes ~17% of ZIP 63021's median household income ($120,177/yr). The standard benchmark is 30%.

ZIP 63021 17%Benchmark 30%
State income tax2–4.7%
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Schools nearby

Public schools near ZIP 63021 (Ballwin, MO)

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