Zip Code 35603
Decatur, Alabama — Morgan County
📍 ZIP code 35603 is in Decatur, Morgan County, Alabama.
ZIP code 35603 is located in Decatur, Morgan County, Alabama. It is a zip code in the Central (CST/CDT) Time Zone with an estimated population of 31,875. The area code for ZIP code 35603 is 256.
Quick Answer
Zip code 35603 is in Decatur, Alabama (Morgan County). It has a population of 31,875, median household income of $78,237, and median home value of $235,600.
Population
31,875
Income
$78,237
Home Value
$235,600
Climate
89°F / 31°F
About Zip Code 35603
Zip code 35603 is located in Decatur, Alabama, within Morgan County. Home to approximately 31,875 residents, this area sits at an elevation of 558 ft and falls within the Central (CST/CDT) timezone. The local area code is 256.
The median household income is $78,237 per year, which is above the national median of $70,784. Homes in this zip code have a median value of $235,600, and the cost of living index is 85 (15% below the national average of 100).
Summers average a high of 89°F while winters drop to 31°F. The area receives about 58 in of rain annually. The zip code covers 70.6 square miles of land area and 6.4 square miles of water.
Key Statistics
31,875
$78,237
$235,600
Central (CST/CDT)
256
558 ft
70.6 sq mi
43.3
14,509
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Compare With Nearby Zip Codes
| Metric | 35603 | 35601 | 35640 | 35649 | 35673 | 35671 |
|---|---|---|---|---|---|---|
| City | Decatur, AL | Decatur, AL | Hartselle, AL | Mooresville, AL | Trinity, AL | Tanner, AL |
| Population | 31,875 | 36,008 | 26,976 | 70 | 7,679 | 1,907 |
| Median Income | $78,237 | $50,216 | $69,686 | $0 | $75,366 | $84,467 |
| Home Value | $235,600 | $148,100 | $196,600 | $416,700 | $191,400 | $251,400 |
| Cost of Living | 85 | 60 | 75 | 100 | 76 | 60 |
| Median Age | 43.3 | 37 | 40.2 | 56.7 | 42.1 | 53.4 |
Cost of Living
100 = National Average. Decatur's cost of living is 15% below the national average.
vs. State Avg
Below
Affordability
Affordable
Income-to-Home
3.0x
Demographics
Zip code 35603 has a population of 31,875 people with a median age of 43.3. There are 14,509 housing units in this area.
Racial & Ethnic Composition
Source: U.S. Census Bureau American Community Survey estimates.
Population History
Decatur (35603) population trend from 2010 to 2024
↓ -27.4%Source: U.S. Census Bureau estimates and American Community Survey data.
Climate & Weather
89°F
31°F
58 in
0 in
Decatur experiences warm summers with average highs around 89°F. Winters are cool with lows averaging 31°F. The area receives virtually no snowfall.
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Housing & Economy
Median Home Value
$235,600
Median Household Income
$78,237
With 14,509 housing units across 70.6 square miles, 35603 has a housing density of 206 units per square mile. The home price-to-income ratio is 3.0x.
Location & Geography
Latitude
34.5355°
Longitude
-86.9712°
Land Area
70.6 sq mi
Water Area
6.4 sq mi
Nearby Zip Codes
Zip codes closest to 35603 (Decatur, AL) with distances:
All Zip Codes in Decatur, AL
Other zip codes serving Decatur:
ZIP Codes with Similar Income Nationwide
The five U.S. ZIP codes whose median household income is closest to 35603's $78,237. A way to compare Decatur to economically similar communities elsewhere in the country.
Computed from U.S. Census Bureau ACS 5-Year Estimates by the Zip Code Near Me Data Team.
ZIP Codes with Similar Demographics
The five U.S. ZIP codes whose racial and ethnic composition most closely matches 35603 (Decatur, AL). Similarity is measured by cosine distance on the five-category ACS demographic vector.
Computed from U.S. Census Bureau ACS 5-Year Estimates by the Zip Code Near Me Data Team.
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People Also Ask
What zip code is Decatur, Alabama?
Decatur, Alabama uses zip code 35603 along with 1 other zip codes.
What county is zip code 35603 in?
Zip code 35603 is located in Morgan County, Alabama.
What is the population of zip code 35603?
The population of zip code 35603 is 31,875 with a median age of 43.3.
Is 35603 in Decatur, Alabama?
Yes, zip code 35603 is in Decatur, Morgan County, Alabama. The area code is 256.
Frequently Asked Questions
What city is zip code 35603 in?
Zip code 35603 is in Decatur, Alabama. It is part of Morgan County and uses the Central (CST/CDT) timezone.
What is zip code 35603?
Zip code 35603 is a U.S. postal code in Decatur, Alabama (Morgan County). It has a population of 31,875 and covers 70.6 square miles.
What is the population of zip code 35603?
The population of zip code 35603 (Decatur, AL) is 31,875 with a median age of 43.3. There are approximately 14,509 housing units in this area.
What is the median income in zip code 35603?
The median household income in zip code 35603 (Decatur, AL) is $78,237 per year. The cost of living index is 85 (100 = national average).
What is the average home price in zip code 35603?
The median home value in zip code 35603 (Decatur, AL) is $235,600. The cost of living index is 85 compared to the national average of 100.
What county is zip code 35603 in?
Zip code 35603 is located in Morgan County, Alabama. The primary city is Decatur.
What is the area code for zip code 35603?
Zip code 35603 in Decatur, AL uses area code 256. It is located in the Central (CST/CDT) timezone.
Is zip code 35603 a good place to live?
Zip code 35603 (Decatur, AL) has a cost of living index of 85 (100 = national average), a median household income of $78,237, and median home values of $235,600. The median age is 43.3. Visit the full page for demographics, climate, and nearby zip code comparisons.
What is the cost of living in zip code 35603?
The cost of living index for zip code 35603 (Decatur, AL) is 85, where 100 represents the national average. This area is below the national average. Median home value: $235,600.
What schools serve zip code 35603?
Zip code 35603 in Decatur, Alabama is served by the local school district of Morgan County. For specific school information, check your state's department of education or GreatSchools.org.
All demographic data on this page is sourced from the U.S. Census Bureau American Community Survey (ACS) 5-Year Estimates. ZIP code boundary and delivery data is sourced from the United States Postal Service (USPS). Data is updated periodically and may not reflect the most current figures. Census Bureau ZIP Code Tabulation Areas (ZCTAs) may differ slightly from USPS ZIP code boundaries.
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Data Sources
- Population, income, housing, age, and demographics
- U.S. Census Bureau, American Community Survey 5-Year Estimates, 2019-2023 vintage.
- ZIP to city and county mapping
- USPS and HUD-USPS ZIP-County Crosswalk.
- Time zones and area codes
- IANA tz database and NANPA.
- Elevation
- U.S. Geological Survey National Elevation Dataset (NED), via the USGS Elevation Point Query Service. Mapped to each ZCTA centroid coordinates. Last refreshed 2026-05-19.
- Last refreshed
- 2026-05-18.