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US ZIP Code Profile

ZIP Code 75670
Marshall, Texas

ZIP code 75670 is in Marshall, located in Harrison County, Texas, within the Marshall metro area. Its 2020 Census population was 16,935. The estimated median adjusted gross income per tax return is $29,744, and about 1% of filers report $200,000 or more.

2020 Population
16,935
Census ZCTA
County
Harrison
FIPS 48203
Median income (est.)
$29,744
IRS SOI 2022
Land Area
122.964 mi²
+ 0.449 mi² water

01Location & Geography

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

Primary CityMarshall, TX
CountyHarrison County (FIPS 48203)
StateTexas (FIPS 48)
Metro Area (MSA)Marshall, TX Micro Area (32220)
Census Region / DivisionSouth Region · West South Central Division
Coordinates32.56986, -94.418655
Land / Water Area122.964 mi² land · 0.449 mi² water

02Income & Economics

Distribution of the 6,560 individual tax returns filed in 75670 by adjusted gross income bracket (IRS SOI, 2022).

< $25K
44.4%
$25K–$50K
29.7%
$50K–$75K
12.0%
$75K–$100K
6.4%
$100K–$200K
6.1%
$200K+
1.4%
The $200,000+ bracket accounts for 14% of 75670's total adjusted gross income, from 1% of returns — a concentration that drives the gap between the median ($29,744) 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 75670's IRS income metrics, 2020–2022.

Median income (2021→2022)
$29,744
▲ 7.9%
Filers earning $200K+
1.4%
▲ 0.0 pt
Total filers
6,560
▼ 0.5%
GET /zipc/v2/zipcodes/75670/soi?year=… $26K 2020 $28K 2021 $30K 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 75670 ZCTA.

2000
17,756
 
2010
17,290
▼ -2.6%
2020
16,935
▼ -2.1%

05USPS Postal Details

Delivery and facility attributes from the monthly USPS dataset.

ZIP ClassificationNon-Unique Zip
Facility TypePost Office
Carrier Route SortD
USPS Finance Number485670
City AliasesMarshall, Blocker, Cave Springs, Darco, Gill, Grange Hall, Nesbitt

06Frequently Asked Questions

What county is ZIP code 75670 in?

ZIP code 75670 is in Harrison County, Texas (county FIPS code 48203).

What city is ZIP code 75670?

The primary USPS city for 75670 is Marshall, TX.

What metro area (MSA) is 75670 in?

75670 is part of the Marshall, TX Micro Area (MSA code 32220).

What is the population of ZIP code 75670?

The 2020 Census population of 75670 was 16,935 residents.

What is the median income in ZIP code 75670?

Based on IRS Statistics of Income data, the estimated median adjusted gross income per tax return in 75670 is about $29,744, 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.