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US ZIP Code Profile

ZIP Code 77434
Eagle Lake, Texas

ZIP code 77434 is in Eagle Lake, located in Colorado County, Texas. Its 2020 Census population was 4,411. The estimated median adjusted gross income per tax return is $36,492, and about 1% of filers report $200,000 or more.

2020 Population
4,411
Census ZCTA
County
Colorado
FIPS 48089
Median income (est.)
$36,492
IRS SOI 2022
Land Area
190.97 mi²
+ 5.264 mi² water

01Location & Geography

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

Primary CityEagle Lake, TX
CountyColorado County (FIPS 48089)
StateTexas (FIPS 48)
Census Region / DivisionSouth Region · West South Central Division
Coordinates29.527956, -96.30518
Land / Water Area190.97 mi² land · 5.264 mi² water

02Income & Economics

Distribution of the 2,030 individual tax returns filed in 77434 by adjusted gross income bracket (IRS SOI, 2022).

< $25K
36.0%
$25K–$50K
30.5%
$50K–$75K
16.8%
$75K–$100K
6.9%
$100K–$200K
8.4%
$200K+
1.5%
The $200,000+ bracket accounts for 18% of 77434's total adjusted gross income, from 1% of returns — a concentration that drives the gap between the median ($36,492) 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 77434's IRS income metrics, 2020–2022.

Median income (2021→2022)
$36,492
▲ 10.8%
Filers earning $200K+
1.5%
▼ 0.0 pt
Total filers
2,030
▲ 0.5%
GET /zipc/v2/zipcodes/77434/soi?year=… $31K 2020 $33K 2021 $36K 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 77434 ZCTA.

2000
4,953
 
2010
4,816
▼ -2.8%
2020
4,411
▼ -8.4%

05USPS Postal Details

Delivery and facility attributes from the monthly USPS dataset.

ZIP ClassificationNon-Unique Zip
Facility TypePost Office
Carrier Route SortC
USPS Finance Number482660
City AliasesEagle Lake, Elm Grove

06Frequently Asked Questions

What county is ZIP code 77434 in?

ZIP code 77434 is in Colorado County, Texas (county FIPS code 48089).

What city is ZIP code 77434?

The primary USPS city for 77434 is Eagle Lake, TX.

What is the population of ZIP code 77434?

The 2020 Census population of 77434 was 4,411 residents.

What is the median income in ZIP code 77434?

Based on IRS Statistics of Income data, the estimated median adjusted gross income per tax return in 77434 is about $36,492, with around 1% of filers reporting $200,000 or more. Note that adjusted gross income is a tax measure and differs from U.S. Census household income.