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US ZIP Code Profile

ZIP Code 35673
Trinity, Alabama

ZIP code 35673 is in Trinity, located in Morgan County, Alabama, within the Decatur metro area. Its 2020 Census population was 8,100. The estimated median adjusted gross income per tax return is $47,820, and about 3% of filers report $200,000 or more.

2020 Population
8,100
Census ZCTA
County
Morgan
FIPS 01103
Median income (est.)
$47,820
IRS SOI 2022
Land Area
43.817 mi²
+ 0.222 mi² water

01Location & Geography

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

Primary CityTrinity, AL
CountyMorgan County (FIPS 01103)
StateAlabama (FIPS 01)
Metro Area (MSA)Decatur, AL Metro Area (19460)
Census Region / DivisionSouth Region · East South Central Division
Coordinates34.576336, -87.13735
Land / Water Area43.817 mi² land · 0.222 mi² water

02Income & Economics

Distribution of the 3,470 individual tax returns filed in 35673 by adjusted gross income bracket (IRS SOI, 2022).

< $25K
27.4%
$25K–$50K
24.8%
$50K–$75K
14.7%
$75K–$100K
12.1%
$100K–$200K
18.2%
$200K+
2.9%
The $200,000+ bracket accounts for 13% of 35673's total adjusted gross income, from 3% of returns — a concentration that drives the gap between the median ($47,820) 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 35673's IRS income metrics, 2020–2022.

Median income (2021→2022)
$47,820
▲ 6.2%
Filers earning $200K+
2.9%
▲ 0.5 pt
Total filers
3,470
▲ 1.2%
GET /zipc/v2/zipcodes/35673/soi?year=… $42K 2020 $45K 2021 $48K 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 35673 ZCTA.

2000
7,523
 
2010
8,199
▲ +9.0%
2020
8,100
▼ -1.2%

05USPS Postal Details

Delivery and facility attributes from the monthly USPS dataset.

ZIP ClassificationNon-Unique Zip
Facility TypePost Office
Carrier Route SortC
USPS Finance Number018210
City AliasesTrinity

06Frequently Asked Questions

What county is ZIP code 35673 in?

ZIP code 35673 is in Morgan County, Alabama (county FIPS code 01103).

What city is ZIP code 35673?

The primary USPS city for 35673 is Trinity, AL.

What metro area (MSA) is 35673 in?

35673 is part of the Decatur, AL Metro Area (MSA code 19460).

What is the population of ZIP code 35673?

The 2020 Census population of 35673 was 8,100 residents.

What is the median income in ZIP code 35673?

Based on IRS Statistics of Income data, the estimated median adjusted gross income per tax return in 35673 is about $47,820, with around 3% of filers reporting $200,000 or more. Note that adjusted gross income is a tax measure and differs from U.S. Census household income.