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US ZIP Code Profile

ZIP Code 63112
Saint Louis, Missouri

ZIP code 63112 is in Saint Louis, located in Saint Louis City County, Missouri, within the St. Louis metro area. Its 2020 Census population was 18,954. The estimated median adjusted gross income per tax return is $34,103, and about 4% of filers report $200,000 or more.

2020 Population
18,954
Census ZCTA
County
Saint Louis City
FIPS 29510
Median income (est.)
$34,103
IRS SOI 2022
Land Area
3.308 mi²
+ 0 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
Coordinates38.658936, -90.28267
Land / Water Area3.308 mi² land · 0 mi² water

02Income & Economics

Distribution of the 6,940 individual tax returns filed in 63112 by adjusted gross income bracket (IRS SOI, 2022).

< $25K
40.4%
$25K–$50K
26.5%
$50K–$75K
13.5%
$75K–$100K
6.5%
$100K–$200K
8.9%
$200K+
4.2%
The $200,000+ bracket accounts for 41% of 63112's total adjusted gross income, from 4% of returns — a concentration that drives the gap between the median ($34,103) 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 63112's IRS income metrics, 2020–2022.

Median income (2021→2022)
$34,103
▲ 9.9%
Filers earning $200K+
4.2%
▲ 0.4 pt
Total filers
6,940
▼ 2.8%
GET /zipc/v2/zipcodes/63112/soi?year=… $28K 2020 $31K 2021 $34K 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 63112 ZCTA.

2000
22,678
 
2010
20,368
▼ -10.2%
2020
18,954
▼ -6.9%

05Nearby ZIP Codes — Live Radius Search

Drag the slider to filter ZIP codes by distance from 63112. Powered by the same radius endpoint developers call from the API.

GET /zipc/v2/radius

ZIP codes within range of 63112

Saint Louis and its immediate neighbors, sorted by distance.

3 mi
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Distance from 63112 to any ZIP

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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, Wellston

07Frequently Asked Questions

What county is ZIP code 63112 in?

ZIP code 63112 is in Saint Louis City County, Missouri (county FIPS code 29510).

What city is ZIP code 63112?

The primary USPS city for 63112 is Saint Louis, MO.

What metro area (MSA) is 63112 in?

63112 is part of the St. Louis, MO-IL Metro Area (MSA code 41180).

What is the population of ZIP code 63112?

The 2020 Census population of 63112 was 18,954 residents.

What is the median income in ZIP code 63112?

Based on IRS Statistics of Income data, the estimated median adjusted gross income per tax return in 63112 is about $34,103, with around 4% of filers reporting $200,000 or more. Note that adjusted gross income is a tax measure and differs from U.S. Census household income.