Get API Key →
US ZIP Code Profile

ZIP Code 63109
Saint Louis, Missouri

ZIP code 63109 is in Saint Louis, located in Saint Louis City County, Missouri, within the St. Louis metro area. Its 2020 Census population was 26,777. The estimated median adjusted gross income per tax return is $58,333, and about 6% of filers report $200,000 or more.

2020 Population
26,777
Census ZCTA
County
Saint Louis City
FIPS 29510
Median income (est.)
$58,333
IRS SOI 2022
Land Area
3.57 mi²
+ 0.067 mi² water

01Location & Geography

Authoritative geographic identifiers from the U.S. Census Bureau, ANSI, and FIPS standards.

Primary CitySaint Louis, MO
CountySaint Louis City County (FIPS 29510)
StateMissouri (FIPS 29)
Metro Area (MSA)St. Louis, MO-IL Metro Area (41180)
Census Region / DivisionMidwest Region · West North Central Division
Coordinates38.584602, -90.29443
Land / Water Area3.57 mi² land · 0.067 mi² water

02Income & Economics

Distribution of the 14,460 individual tax returns filed in 63109 by adjusted gross income bracket (IRS SOI, 2022).

< $25K
19.9%
$25K–$50K
23.9%
$50K–$75K
18.7%
$75K–$100K
11.9%
$100K–$200K
19.4%
$200K+
6.2%
The $200,000+ bracket accounts for 26% of 63109's total adjusted gross income, from 6% of returns — a concentration that drives the gap between the median ($58,333) and the average.
Estimated median = median adjusted gross income per tax return, interpolated from IRS SOI brackets. Differs from U.S. Census household income.

03Income Over Time

Year-over-year change in 63109's IRS income metrics, 2020–2022.

Median income (2021→2022)
$58,333
▲ 7.0%
Filers earning $200K+
6.2%
▲ 1.0 pt
Total filers
14,460
▲ 0.9%
GET /zipc/v2/zipcodes/63109/soi?year=… $49K 2020 $55K 2021 $58K 2022
Median = adjusted gross income per return, interpolated from IRS SOI brackets. Figures are nominal (not inflation-adjusted).

04Population Trend

Decennial U.S. Census population for the 63109 ZCTA.

2000
29,264
 
2010
26,946
▼ -7.9%
2020
26,777
▼ -0.6%

05Nearby ZIP Codes — Live Radius Search

Drag the slider to filter ZIP codes by distance from 63109. Powered by the same radius endpoint developers call from the API.

GET /zipc/v2/radius

ZIP codes within range of 63109

Saint Louis and its immediate neighbors, sorted by distance.

3 mi
GET /zipc/v2/distance

Distance from 63109 to any ZIP

Enter a 5-digit ZIP to calculate the distance.

06USPS Postal Details

Delivery and facility attributes from the monthly USPS dataset.

ZIP ClassificationNon-Unique Zip
Facility TypePost Office
Carrier Route SortD
USPS Finance Number287140
City AliasesSaint Louis

07Frequently Asked Questions

What county is ZIP code 63109 in?

ZIP code 63109 is in Saint Louis City County, Missouri (county FIPS code 29510).

What city is ZIP code 63109?

The primary USPS city for 63109 is Saint Louis, MO.

What metro area (MSA) is 63109 in?

63109 is part of the St. Louis, MO-IL Metro Area (MSA code 41180).

What is the population of ZIP code 63109?

The 2020 Census population of 63109 was 26,777 residents.

What is the median income in ZIP code 63109?

Based on IRS Statistics of Income data, the estimated median adjusted gross income per tax return in 63109 is about $58,333, with around 6% of filers reporting $200,000 or more. Note that adjusted gross income is a tax measure and differs from U.S. Census household income.