Get API Key →
US ZIP Code Profile

ZIP Code 35756
Madison, Alabama

ZIP code 35756 is in Madison, located in Limestone County, Alabama, within the Huntsville metro area. Its 2020 Census population was 22,978. The estimated median adjusted gross income per tax return is $84,672, and about 13% of filers report $200,000 or more.

2020 Population
22,978
Census ZCTA
County
Limestone
FIPS 01083
Median income (est.)
$84,672
IRS SOI 2022
Land Area
76.579 mi²
+ 5.424 mi² water

01Location & Geography

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

Primary CityMadison, AL
CountyLimestone County (FIPS 01083)
StateAlabama (FIPS 01)
Metro Area (MSA)Huntsville, AL Metro Area (26620)
Census Region / DivisionSouth Region · East South Central Division
Coordinates34.643703, -86.818146
Land / Water Area76.579 mi² land · 5.424 mi² water

02Income & Economics

Distribution of the 12,560 individual tax returns filed in 35756 by adjusted gross income bracket (IRS SOI, 2022).

< $25K
19.0%
$25K–$50K
15.4%
$50K–$75K
11.3%
$75K–$100K
10.9%
$100K–$200K
30.7%
$200K+
12.6%
The $200,000+ bracket accounts for 37% of 35756's total adjusted gross income, from 13% of returns — a concentration that drives the gap between the median ($84,672) 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 35756's IRS income metrics, 2020–2022.

Median income (2021→2022)
$84,672
▲ 4.0%
Filers earning $200K+
12.6%
▲ 0.8 pt
Total filers
12,560
▲ 8.5%
GET /zipc/v2/zipcodes/35756/soi?year=… $75K 2020 $81K 2021 $85K 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 35756 ZCTA.

2000
4,200
 
2010
9,016
▲ +114.7%
2020
22,978
▲ +154.9%

05USPS Postal Details

Delivery and facility attributes from the monthly USPS dataset.

ZIP ClassificationNon-Unique Zip
Facility TypePost Office
Carrier Route SortD
USPS Finance Number015180
City AliasesMadison

06Frequently Asked Questions

What county is ZIP code 35756 in?

ZIP code 35756 is in Limestone County, Alabama (county FIPS code 01083).

What city is ZIP code 35756?

The primary USPS city for 35756 is Madison, AL.

What metro area (MSA) is 35756 in?

35756 is part of the Huntsville, AL Metro Area (MSA code 26620).

What is the population of ZIP code 35756?

The 2020 Census population of 35756 was 22,978 residents.

What is the median income in ZIP code 35756?

Based on IRS Statistics of Income data, the estimated median adjusted gross income per tax return in 35756 is about $84,672, with around 13% of filers reporting $200,000 or more. Note that adjusted gross income is a tax measure and differs from U.S. Census household income.