Alabama ZIP Code Lookup & Directory
Mail moves differently in a place like Alabama, where a package headed to a Birmingham high-rise and one headed to a farm outside Demopolis can travel through completely different USPS routing paths despite being in the same state. Getting the ZIP code right is what separates a next-day delivery in Huntsville from a letter that bounces between sorting facilities before it finally reaches Dothan. Cities like Mobile, Montgomery, Tuscaloosa, and Huntsville each carry their own postal identity, shaped by population density, county lines, and how USPS carrier routes were built out over decades.
This directory exists to make that lookup simple whether someone is verifying an address before shipping, checking which county a ZIP falls into, or trying to understand why two neighboring towns share a ZIP prefix but not a city name.
About ZIP Codes in Alabama
Alabama's ZIP codes fall within the 35000–36999 range, with active codes running from around 35004 in the north-central part of the state down to the high 369xx codes near the Mississippi state line. The state uses roughly two dozen three-digit prefixes 350 through 369 and that numbering isn't random. Prefixes starting with 35 dominate the northern and central regions, covering Birmingham, Huntsville, Tuscaloosa, and the Appalachian foothills counties like Jackson and DeKalb. Prefixes starting with 36 shift southward, covering Montgomery, Dothan, Selma, and the Gulf Coast counties around Mobile and Baldwin.
Jefferson County, home to Birmingham, carries more individual ZIP codes than any other county in the state a reflection of how densely the metro area is subdivided into neighborhoods like Five Points South, Avondale, and the Homewood/Mountain Brook corridor. Mobile County follows, driven by the port city's own layout plus its surrounding coastal communities. Montgomery County, home to the capital, rounds out the top three.
Rural counties tell a different story. In the Black Belt region counties like Wilcox, Perry, and Marengo a single ZIP code can stretch across hundreds of square miles of farmland, meaning far fewer codes cover far more territory than in urban Jefferson or Madison counties.
How ZIP Codes Work in Alabama
USPS assigns each ZIP code to a "preferred" city name, which doesn't always match how residents refer to their own town. A ZIP code technically assigned to Birmingham might actually serve Vestavia Hills or Hoover addresses, because USPS routing follows delivery efficiency, not municipal borders. This is a common point of confusion for people mailing packages to suburban Birmingham the county line and the ZIP boundary rarely match up exactly.
Alabama also has ZIP codes dedicated to specific institutions and PO Box clusters. Downtown Birmingham and downtown Montgomery both have ZIP codes that serve almost exclusively PO Boxes and business mail rather than residential delivery. Huntsville carries a handful of unique ZIP codes tied to Redstone Arsenal, since military installations often get their own postal designation separate from the surrounding city grid.
County boundaries and city boundaries frequently disagree in Alabama. A Trussville address might carry a Birmingham ZIP code, and a portion of unincorporated Shelby County can share a ZIP with a town it isn't legally part of. Anyone mailing to smaller towns should confirm the ZIP against the actual county, not assume it based on the city name printed on the address.
Browse ZIP Codes by City
Searching by city is the fastest way to confirm a ZIP code in Alabama, especially since the state has more than 460 distinct cities and communities carrying their own postal designations. Typing in a city like Auburn, Opelika, Gadsden, or Florence pulls up every ZIP that falls under that city's delivery area, including any that split off for suburbs or unincorporated pockets nearby. For larger metros Birmingham, Huntsville, Mobile, Montgomery city search typically returns a dozen or more results, since these areas are broken into multiple ZIP zones by neighborhood.
Major Cities & ZIP Code Coverage
Birmingham, Alabama's largest city, uses ZIP codes almost entirely in the 352xx range. Downtown falls under 35203 and 35204, Five Points South and Southside sit under 35205, the eastern neighborhoods use 35206, and the area bordering Homewood and Mountain Brook uses 35209. More than 30 ZIP codes cover Birmingham and its immediate suburbs combined.
Montgomery, the state capital, is centered in the 361xx range, with government buildings, Maxwell Air Force Base, and the downtown riverfront district each falling under slightly different codes.
Huntsville, driven by its aerospace and defense economy, spans the 358xx prefix range. Its ZIP layout reflects the city's rapid growth around Cummings Research Park and Redstone Arsenal, with newer suburban ZIPs appearing on the west side of the city as development pushes outward.
Mobile, the state's port city, uses the 366xx range and includes distinct ZIPs for its historic downtown, the university area near the University of South Alabama, and the industrial corridor along the Mobile River.
Tuscaloosa, home to the University of Alabama, carries ZIPs in the 354xx range, with a noticeable split between the university-adjacent codes and the more residential and industrial zones toward the Black Warrior River.
ZIP Codes by County
Alabama's 67 counties vary enormously in ZIP density. Jefferson County leads by a wide margin, followed by Mobile and Montgomery counties. Madison County, anchored by Huntsville, has seen its ZIP count grow steadily as the aerospace and tech sector pulls in new residential development north of the city.
On the opposite end, counties like Greene, Lowndes, and Choctaw largely rural and sparsely populated may have only a handful of ZIP codes covering their entire land area. This matters practically: a rural route ZIP in Lowndes County might serve a delivery area many times larger than a single ZIP in central Birmingham.
Popular ZIP Codes
| ZIP Code | City | County | Notes |
|---|---|---|---|
| 35203 | Birmingham | Jefferson | Downtown core, business district |
| 35801 | Huntsville | Madison | Near Redstone Arsenal and research park |
| 36104 | Montgomery | Montgomery | State capitol and downtown government offices |
| 36602 | Mobile | Mobile | Historic downtown and port district |
| 35401 | Tuscaloosa | Tuscaloosa | Near University of Alabama campus |
| 36830 | Auburn | Lee | Auburn University area |
| 35054 | Ashville | St. Clair | Rural St. Clair County community |
| 36301 | Dothan | Houston | Wiregrass region hub city |
Mailing, Shipping & Address Verification
USPS preferred city names in Alabama can trip up first-time senders. A package addressed to "Hoover" might actually need to route through a Birmingham-designated ZIP, since Hoover doesn't carry its own full set of postal codes for every neighborhood within city limits. The same applies to smaller communities like Pelham or Alabaster always check the ZIP directly rather than assuming the city name on a map matches the USPS-preferred name.
Rural route addresses remain common in counties like Cullman, Winston, and Clarke, where traditional street addressing came later than in urban areas. Apartment and suite numbers matter more than usual in college towns like Tuscaloosa and Auburn, where dense student housing means multiple deliveries can share a single street address differentiated only by unit number. Verifying an address before shipping particularly for e-commerce orders headed to rural Alabama reduces failed deliveries and return-to-sender costs.
Business, Logistics & Delivery
Alabama's ZIP code structure plays directly into how freight and e-commerce companies plan routes through the state. Interstate 65 runs north-south through Birmingham and Montgomery, connecting the two largest metro ZIP clusters and serving as the backbone for most trucking routes. Interstate 20/59 cuts through Birmingham toward Tuscaloosa and on to Mississippi, while I-85 links Montgomery to Auburn and into Georgia.
The Port of Mobile, operated by the Alabama State Port Authority, is one of the busiest deepwater ports on the Gulf Coast and drives significant freight volume through Mobile County's ZIP codes, feeding distribution centers along the I-65 corridor. Huntsville International Airport and Birmingham-Shuttlesworth International Airport both handle cargo traffic tied to the state's aerospace and automotive manufacturing sectors including the Mercedes-Benz plant in Vance, the Hyundai plant in Montgomery, and the Toyota-Mazda plant in Huntsville, each of which generates dedicated supplier logistics traffic through nearby ZIP zones.
Rail service through Norfolk Southern and CSX intersects heavily around Birmingham, historically the state's steel and industrial center, making certain Jefferson County ZIPs important nodes for freight transfer rather than just residential delivery.
Quick Facts
| Category | Detail |
|---|---|
| ZIP Code Range | 35004–36925 |
| Counties | 67 |
| Largest City | Birmingham |
| State Capital | Montgomery |
| Time Zone | Central Time |
| Area Codes | 205, 251, 256, 334, 659, 938 |
Helpful Tips
Double-check the county before mailing to a smaller Alabama town many communities share a ZIP with a neighboring city and don't have their own dedicated postal designation. When shipping to Huntsville, note whether the destination is tied to Redstone Arsenal, since military-adjacent ZIPs sometimes require different handling than standard residential codes. For addresses in the Black Belt counties, expect longer delivery windows on rural routes, and always include a valid rural route or box number rather than relying on a street address alone. Businesses shipping into the Mobile area should account for port-related traffic congestion that can occasionally slow last-mile delivery near the downtown ZIPs.
Related Pages
- Alaska ZIP Code Directory
- Arizona ZIP Code Directory
- Arkansas ZIP Code Directory
- California ZIP Code Directory
- Browse All US States
- ZIP Code Lookup Tool
- ZIP Code Distance Calculator
FAQ
How many ZIP codes does Alabama have?
Alabama has several hundred active ZIP codes distributed across all 67 counties, covering both dense urban centers and sparsely populated rural areas.
What ZIP code range does Alabama use?
Alabama ZIP codes generally fall between 35004 and 36925, using three-digit prefixes from 350 through 369.
Which county has the most ZIP codes in Alabama?
Jefferson County, home to Birmingham, has more ZIP codes than any other county in the state.
Does Montgomery have more than one ZIP code?
Yes, Montgomery is divided into multiple ZIP codes covering downtown, residential neighborhoods, and areas near Maxwell Air Force Base.
Why does my Hoover or Vestavia Hills address show a Birmingham ZIP code?
USPS assigns preferred city names based on delivery routing, not municipal boundaries, so suburbs near Birmingham often share its ZIP designation.
Are there military ZIP codes in Alabama?
Yes, Redstone Arsenal in Huntsville and Maxwell Air Force Base in Montgomery both have distinct postal designations tied to their installations.
What is the ZIP code for the Port of Mobile area?
Downtown Mobile's port district falls primarily under ZIP code 36602.
Do rural Alabama counties have fewer ZIP codes than urban ones?
Yes, rural counties like Wilcox, Greene, and Lowndes have far fewer ZIP codes, each covering much larger geographic areas than urban ZIPs.
How do I find the correct ZIP code for a small Alabama town?
Search by city name directly rather than assuming based on the nearest larger city, since many small towns share ZIPs with neighboring communities.
What area codes correspond to Alabama ZIP codes?
Alabama uses six area codes: 205, 251, 256, 334, 659, and 938, generally aligned with different regions of the state.
Is all of Alabama in one time zone?
Yes, the entire state operates on Central Time.
Why do college towns like Auburn and Tuscaloosa need extra address detail?
Dense student housing means multiple residents often share a single street address, so apartment or unit numbers are essential for accurate delivery.
Conclusion
Alabama's postal geography reflects the state itself dense and layered around Birmingham, Huntsville, and Mobile, then wide open across the Black Belt and Wiregrass regions. Getting a ZIP code right here means paying attention to county lines, preferred city names, and the difference between a metro-area code and a rural route. Search by city or ZIP code above to find the exact information needed for any address in Alabama.