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US ZIP Code Profile

ZIP Code 35633
Florence, Alabama

ZIP code 35633 is in Florence, located in Lauderdale County, Alabama, within the Florence-Muscle Shoals metro area. Its 2020 Census population was 20,446. The estimated median adjusted gross income per tax return is $46,770, and about 4% of filers report $200,000 or more.

2020 Population
20,446
Census ZCTA
County
Lauderdale
FIPS 01077
Median income (est.)
$46,770
IRS SOI 2022
Land Area
208.953 mi²
+ 13.882 mi² water

01Location & Geography

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

Primary CityFlorence, AL
CountyLauderdale County (FIPS 01077)
StateAlabama (FIPS 01)
Metro Area (MSA)Florence-Muscle Shoals, AL Metro Area (22520)
Census Region / DivisionSouth Region · East South Central Division
Coordinates34.8751, -87.79837
Land / Water Area208.953 mi² land · 13.882 mi² water

02Income & Economics

Distribution of the 8,780 individual tax returns filed in 35633 by adjusted gross income bracket (IRS SOI, 2022).

< $25K
29.3%
$25K–$50K
23.8%
$50K–$75K
15.7%
$75K–$100K
11.5%
$100K–$200K
16.0%
$200K+
3.8%
The $200,000+ bracket accounts for 20% of 35633's total adjusted gross income, from 4% of returns — a concentration that drives the gap between the median ($46,770) 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 35633's IRS income metrics, 2020–2022.

Median income (2021→2022)
$46,770
▲ 4.7%
Filers earning $200K+
3.8%
▲ 0.4 pt
Total filers
8,780
▲ 1.0%
GET /zipc/v2/zipcodes/35633/soi?year=… $41K 2020 $45K 2021 $47K 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 35633 ZCTA.

2000
19,521
 
2010
20,877
▲ +6.9%
2020
20,446
▼ -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 Number013110
City AliasesFlorence

06Frequently Asked Questions

What county is ZIP code 35633 in?

ZIP code 35633 is in Lauderdale County, Alabama (county FIPS code 01077).

What city is ZIP code 35633?

The primary USPS city for 35633 is Florence, AL.

What metro area (MSA) is 35633 in?

35633 is part of the Florence-Muscle Shoals, AL Metro Area (MSA code 22520).

What is the population of ZIP code 35633?

The 2020 Census population of 35633 was 20,446 residents.

What is the median income in ZIP code 35633?

Based on IRS Statistics of Income data, the estimated median adjusted gross income per tax return in 35633 is about $46,770, with around 4% of filers reporting $200,000 or more. Note that adjusted gross income is a tax measure and differs from U.S. Census household income.