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US ZIP Code Profile

ZIP Code 77031
Houston, Texas

ZIP code 77031 is in Houston, located in Harris County, Texas, within the Houston-The Woodlands-Sugar Land metro area. Its 2020 Census population was 15,678. The estimated median adjusted gross income per tax return is $31,649, and about 2% of filers report $200,000 or more.

2020 Population
15,678
Census ZCTA
County
Harris
FIPS 48201
Median income (est.)
$31,649
IRS SOI 2022
Land Area
3.191 mi²
+ 0.007 mi² water

01Location & Geography

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

Primary CityHouston, TX
CountyHarris County (FIPS 48201)
StateTexas (FIPS 48)
Metro Area (MSA)Houston-The Woodlands-Sugar Land, TX Metro Area (26420)
Census Region / DivisionSouth Region · West South Central Division
Coordinates29.652205, -95.54623
Land / Water Area3.191 mi² land · 0.007 mi² water

02Income & Economics

Distribution of the 6,700 individual tax returns filed in 77031 by adjusted gross income bracket (IRS SOI, 2022).

< $25K
42.5%
$25K–$50K
28.1%
$50K–$75K
13.0%
$75K–$100K
6.3%
$100K–$200K
8.5%
$200K+
1.6%
The $200,000+ bracket accounts for 12% of 77031's total adjusted gross income, from 2% of returns — a concentration that drives the gap between the median ($31,649) 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 77031's IRS income metrics, 2020–2022.

Median income (2021→2022)
$31,649
▲ 3.7%
Filers earning $200K+
1.6%
▼ 0.1 pt
Total filers
6,700
▲ 4.0%
GET /zipc/v2/zipcodes/77031/soi?year=… $28K 2020 $31K 2021 $32K 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 77031 ZCTA.

2000
17,004
 
2010
15,762
▼ -7.3%
2020
15,678
▼ -0.5%

05Nearby ZIP Codes — Live Radius Search

Drag the slider to filter ZIP codes by distance from 77031. Powered by the same radius endpoint developers call from the API.

GET /zipc/v2/radius

ZIP codes within range of 77031

Houston and its immediate neighbors, sorted by distance.

3 mi
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Distance from 77031 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 Number484145
City AliasesHouston

07Frequently Asked Questions

What county is ZIP code 77031 in?

ZIP code 77031 is in Harris County, Texas (county FIPS code 48201).

What city is ZIP code 77031?

The primary USPS city for 77031 is Houston, TX.

What metro area (MSA) is 77031 in?

77031 is part of the Houston-The Woodlands-Sugar Land, TX Metro Area (MSA code 26420).

What is the population of ZIP code 77031?

The 2020 Census population of 77031 was 15,678 residents.

What is the median income in ZIP code 77031?

Based on IRS Statistics of Income data, the estimated median adjusted gross income per tax return in 77031 is about $31,649, with around 2% of filers reporting $200,000 or more. Note that adjusted gross income is a tax measure and differs from U.S. Census household income.