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US ZIP Code Profile

ZIP Code 77478
Sugar Land, Texas

ZIP code 77478 is in Sugar Land, located in Fort Bend County, Texas, within the Houston-The Woodlands-Sugar Land metro area. Its 2020 Census population was 24,536. The estimated median adjusted gross income per tax return is $69,919, and about 17% of filers report $200,000 or more.

2020 Population
24,536
Census ZCTA
County
Fort Bend
FIPS 48157
Median income (est.)
$69,919
IRS SOI 2022
Land Area
9.72 mi²
+ 0.616 mi² water

01Location & Geography

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

Primary CitySugar Land, TX
CountyFort Bend County (FIPS 48157)
StateTexas (FIPS 48)
Metro Area (MSA)Houston-The Woodlands-Sugar Land, TX Metro Area (26420)
Census Region / DivisionSouth Region · West South Central Division
Coordinates29.620312, -95.60569
Land / Water Area9.72 mi² land · 0.616 mi² water

02Income & Economics

Distribution of the 12,110 individual tax returns filed in 77478 by adjusted gross income bracket (IRS SOI, 2022).

< $25K
23.5%
$25K–$50K
16.3%
$50K–$75K
12.8%
$75K–$100K
9.3%
$100K–$200K
21.4%
$200K+
16.7%
The $200,000+ bracket accounts for 63% of 77478's total adjusted gross income, from 17% of returns — a concentration that drives the gap between the median ($69,919) 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 77478's IRS income metrics, 2020–2022.

Median income (2021→2022)
$69,919
▲ 3.4%
Filers earning $200K+
16.7%
▲ 0.9 pt
Total filers
12,110
▲ 1.9%
GET /zipc/v2/zipcodes/77478/soi?year=… $61K 2020 $68K 2021 $70K 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 77478 ZCTA.

2000
52,591
 
2010
24,739
▼ -53.0%
2020
24,536
▼ -0.8%

05Nearby ZIP Codes — Live Radius Search

Drag the slider to filter ZIP codes by distance from 77478. Powered by the same radius endpoint developers call from the API.

GET /zipc/v2/radius

ZIP codes within range of 77478

Sugar Land and its immediate neighbors, sorted by distance.

3 mi
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Distance from 77478 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 Number488710
City AliasesSugar Land

07Frequently Asked Questions

What county is ZIP code 77478 in?

ZIP code 77478 is in Fort Bend County, Texas (county FIPS code 48157).

What city is ZIP code 77478?

The primary USPS city for 77478 is Sugar Land, TX.

What metro area (MSA) is 77478 in?

77478 is part of the Houston-The Woodlands-Sugar Land, TX Metro Area (MSA code 26420).

What is the population of ZIP code 77478?

The 2020 Census population of 77478 was 24,536 residents.

What is the median income in ZIP code 77478?

Based on IRS Statistics of Income data, the estimated median adjusted gross income per tax return in 77478 is about $69,919, with around 17% of filers reporting $200,000 or more. Note that adjusted gross income is a tax measure and differs from U.S. Census household income.