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US ZIP Code Profile

ZIP Code 75661
Karnack, Texas

ZIP code 75661 is in Karnack, located in Harrison County, Texas, within the Marshall metro area. Its 2020 Census population was 2,381. The estimated median adjusted gross income per tax return is $38,393, and about 5% of filers report $200,000 or more.

2020 Population
2,381
Census ZCTA
County
Harrison
FIPS 48203
Median income (est.)
$38,393
IRS SOI 2022
Land Area
127.483 mi²
+ 9.285 mi² water

01Location & Geography

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

Primary CityKarnack, TX
CountyHarrison County (FIPS 48203)
StateTexas (FIPS 48)
Metro Area (MSA)Marshall, TX Micro Area (32220)
Census Region / DivisionSouth Region · West South Central Division
Coordinates32.631317, -94.171265
Land / Water Area127.483 mi² land · 9.285 mi² water

02Income & Economics

Distribution of the 1,000 individual tax returns filed in 75661 by adjusted gross income bracket (IRS SOI, 2022).

< $25K
35.0%
$25K–$50K
28.0%
$50K–$75K
12.0%
$75K–$100K
9.0%
$100K–$200K
11.0%
$200K+
5.0%
The $200,000+ bracket accounts for 39% of 75661's total adjusted gross income, from 5% of returns — a concentration that drives the gap between the median ($38,393) 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 75661's IRS income metrics, 2020–2022.

Median income (2021→2022)
$38,393
▲ 3.7%
Filers earning $200K+
5.0%
▲ 1.0 pt
Total filers
1,000
▲ 0.0%
GET /zipc/v2/zipcodes/75661/soi?year=… $34K 2020 $37K 2021 $38K 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 75661 ZCTA.

2000
2,558
 
2010
2,807
▲ +9.7%
2020
2,381
▼ -15.2%

05USPS Postal Details

Delivery and facility attributes from the monthly USPS dataset.

ZIP ClassificationNon-Unique Zip
Facility TypePost Office
Carrier Route SortC
USPS Finance Number484560
City AliasesBaldwin, Karnack, Leigh, Uncertain

06Frequently Asked Questions

What county is ZIP code 75661 in?

ZIP code 75661 is in Harrison County, Texas (county FIPS code 48203).

What city is ZIP code 75661?

The primary USPS city for 75661 is Karnack, TX.

What metro area (MSA) is 75661 in?

75661 is part of the Marshall, TX Micro Area (MSA code 32220).

What is the population of ZIP code 75661?

The 2020 Census population of 75661 was 2,381 residents.

What is the median income in ZIP code 75661?

Based on IRS Statistics of Income data, the estimated median adjusted gross income per tax return in 75661 is about $38,393, with around 5% of filers reporting $200,000 or more. Note that adjusted gross income is a tax measure and differs from U.S. Census household income.