| City: | Auburn, Alabama |
| County: | Lee County |
| Timezone: | Central (GMT -06:00) |
| Local Time: | 11:14:50 PM |
| Population: | No Population Data |
| Area Code: | 334 |
| Classification: | PO Box |
| Coordinates: | 32.6099, -85.4809 |
| Quick Link: |
ZIP code 36831 serves a commercial postal hub in Auburn, Alabama. Unlike Auburn's other ZIP codes that cover residential neighborhoods, this one exists as a point location enclosed within 36830. All 884 PO Boxes and 640 business delivery points tie to a single address: Opelika Road. That's the commercial artery connecting Auburn to neighboring Opelika.
This isn't a neighborhood ZIP. It's a business mail center. With 35 establishments employing 394 workers using this ZIP, it functions as a concentrated commercial mailing address. The 194 street records all carry UNIT designators, typical of a multi-tenant commercial building or shopping center. Residents don't live in 36831. They pick up mail here.
Auburn's standard ZIP code 36830 handles residential delivery throughout the city. This PO Box ZIP exists alongside it, serving businesses and individuals who prefer a dedicated PO Box address. Because it isn't a PO Box Only Zone, customers have alternatives. Many choose 36831 for privacy, package security, or business purposes rather than necessity.
All street records point to Opelika Road, the commercial highway between Auburn and Opelika.
ZIP Code 36831 supports both business and residential activity. According to the Business Census (2024), there are 31 business establishments, employing about 382 people with an annual payroll of $21,607,000.
| # Residential Mailboxes: | 0Source: USPS |
| # Business Mailboxes: | 0Source: USPS |
| Total Delivery Receptacles: | 4,340Source: USPS |
| Single Family Delivery Units: | 0Source: USPS |
| Multi Family Delivery Units: | 0Source: USPS |
| # of Businesses: | 31Source: CBP |
| 1st Quarter Payroll: | $5,234,000Source: CBP |
| Annual Payroll: | $21,607,000Source: CBP |
| # of Employees: | 382Source: CBP |
ZIP Code 36831 is located in Lee County, Alabama, within the Auburn-Opelika, AL Metropolitan Statistical Area (CBSA 12220) and Alabama's 3rd Congressional District. This Metro area has a population of 196,614 people, about 0.00% of whom live in ZIP Code 36831. It covers 0 sq mi of land and a water area of 0 sq mi.
| CBSA Name: | Auburn-Opelika, ALSource: Census |
| CBSA Number: | 12220Source: Census |
| CBSA Type: | MetroSource: Census |
| CBSA Division: | --Source: Census |
| CBSA Population: | 196,614Source: Census |
| MSA: | Auburn-Opelika, AL MSASource: Census |
| Land Area: | --Source: Census |
| Water Area: | --Source: Census |
| Congressional District: | 03Source: USPS |
| Congressional Land Area: | 7543.86 sq miSource: Census |
| PMSA: | --Source: Census |
| Intro Date: | < 2004-10Source: ZIP-Codes.com |
| Place FIPS Code: | 0103076Source: Census |
| Place Name: | Auburn city; AlabamaSource: Census |
We could not locate which school district 36831 belongs to, but we will update this once new district data is released. There are no public schools nor private schools with a mailing address in this ZIP Code. Listing Nearby schools instead. It also has 6 colleges, universities or post secondary education institutions nearby which would be a short commute to.
Our sources include trusted federal and licensed data from the United States Postal Service, U.S. Census Bureau, U.S. Geological Survey, Centers for Medicare & Medicaid Services, and the National Center for Education Statistics, along with proprietary datasets created by ZIP-Codes.com. Data last updated on February 1, 2026.