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US ZIP Code Profile

ZIP Code 50311
Des Moines, Iowa

ZIP code 50311 is in Des Moines, located in Polk County, Iowa, within the Des Moines-West Des Moines metro area. Its 2020 Census population was 14,782. The estimated median adjusted gross income per tax return is $45,211, and about 4% of filers report $200,000 or more.

2020 Population
14,782
Census ZCTA
County
Polk
FIPS 19153
Median income (est.)
$45,211
IRS SOI 2022
Land Area
2.512 mi²
+ 0 mi² water

01Location & Geography

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

Primary CityDes Moines, IA
CountyPolk County (FIPS 19153)
StateIowa (FIPS 19)
Metro Area (MSA)Des Moines-West Des Moines, IA Metro Area (19780)
Census Region / DivisionMidwest Region · West North Central Division
Coordinates41.60104, -93.67289
Land / Water Area2.512 mi² land · 0 mi² water

02Income & Economics

Distribution of the 5,870 individual tax returns filed in 50311 by adjusted gross income bracket (IRS SOI, 2022).

< $25K
28.8%
$25K–$50K
26.2%
$50K–$75K
16.9%
$75K–$100K
10.4%
$100K–$200K
13.8%
$200K+
3.9%
The $200,000+ bracket accounts for 19% of 50311's total adjusted gross income, from 4% of returns — a concentration that drives the gap between the median ($45,211) 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 50311's IRS income metrics, 2020–2022.

Median income (2021→2022)
$45,211
▲ 4.1%
Filers earning $200K+
3.9%
▲ 0.8 pt
Total filers
5,870
▲ 2.6%
GET /zipc/v2/zipcodes/50311/soi?year=… $41K 2020 $43K 2021 $45K 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 50311 ZCTA.

2000
18,590
 
2010
15,113
▼ -18.7%
2020
14,782
▼ -2.2%

05Nearby ZIP Codes — Live Radius Search

Drag the slider to filter ZIP codes by distance from 50311. Powered by the same radius endpoint developers call from the API.

GET /zipc/v2/radius

ZIP codes within range of 50311

Des Moines and its immediate neighbors, sorted by distance.

3 mi
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Distance from 50311 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 Number182412
City AliasesDes Moines

07Frequently Asked Questions

What county is ZIP code 50311 in?

ZIP code 50311 is in Polk County, Iowa (county FIPS code 19153).

What city is ZIP code 50311?

The primary USPS city for 50311 is Des Moines, IA.

What metro area (MSA) is 50311 in?

50311 is part of the Des Moines-West Des Moines, IA Metro Area (MSA code 19780).

What is the population of ZIP code 50311?

The 2020 Census population of 50311 was 14,782 residents.

What is the median income in ZIP code 50311?

Based on IRS Statistics of Income data, the estimated median adjusted gross income per tax return in 50311 is about $45,211, 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.