Lawton's ZIP codes: 73501 for central Lawton, 73503 for Fort Sill, 73505 on the west side, plus Elgin, Cache, Medicine Park, Fletcher, and Sterling. Whether you're searching for a home near Fort Sill or just trying to figure out which ZIP code covers the neighborhood you keep seeing in listings, this guide has the answers.
What Are Lawton's ZIP Codes?
Lawton uses several ZIP codes, and each one points to a different part of the city. Here's the quick version:
| ZIP Code | What It Covers |
|---|---|
| 73501 | Central and south Lawton, including downtown, nearest Fort Sill |
| 73502 | PO Box only, no street delivery |
| 73503 | Fort Sill, for on-post addresses |
| 73505 | West side along the Cache Road corridor, the city's most populous ZIP |
| 73506 | North-central Lawton, street delivery |
| 73507 | Northwest Lawton, street delivery |
| 73558 | PO Box only, no street delivery |
What ZIP Code Covers Central and South Lawton?
73501 covers the central and southern part of the city, running right up against the Fort Sill boundary. It includes downtown Lawton and many of the city's older, established neighborhoods, and it's the ZIP you'll see on addresses closest to the post. Our Lawton community guide covers the city's schools, parks, restaurants, and attractions in one place.
What Is the ZIP Code for Fort Sill?
The post itself has its own ZIP code: 73503. On-post addresses, including barracks, family housing, and the post office, all use it, with Lawton as an acceptable city name for mailing purposes. If you're PCSing to Fort Sill and setting up a mailing address on post, this is the ZIP you'll use. Families who live off post in Lawton use their neighborhood's city ZIP instead. For housing, gates, and daily life on the installation, see our Fort Sill community guide.
What ZIP Code Covers Lawton's West Side?
73505 is Lawton's most populous ZIP code and the one you'll see on the majority of new listings. It covers the west side of the city along the Cache Road corridor, including Comanche County Memorial Hospital, Great Plains Technology Center, and most of the area's big-box retail and restaurant development. It's a popular part of town for buyers because of the mix of established neighborhoods, newer construction, and easy access to Fort Sill gates and I-44. If you're comparing areas, our guide to where to live in Lawton walks through the main residential parts of the city with 2026 prices and commute notes.
What ZIP Codes Cover North and Northwest Lawton?
73506 and 73507 are both standard ZIP codes with street delivery. 73507 is most often associated with Lawton's northwest side, while 73506 covers the north-central part of town. Because the boundary between them isn't published as a simple neighborhood map, the easiest way to know which one applies to a specific address is to check the property listing or the seller's disclosure. Both areas put you within a short drive of Fort Sill gates and the main Cache Road shopping corridor.
What Are the ZIP Codes for Towns Around Lawton?
Each of the communities around Lawton has its own ZIP code, and it's worth knowing them before you start searching, because listings in these towns won't show up in a Lawton-only search:
- Elgin: 73538, about 20 minutes northeast of Lawton via I-44
- Cache: 73527, about 20 minutes west on US-62
- Medicine Park: 73557, about 20 minutes northwest, at the edge of the Wichita Mountains Wildlife Refuge
- Fletcher: 73541, about 25 minutes northeast on US-277
- Sterling: 73567, about 30 minutes northeast on OK-17
For routes and real drive times between all of these towns, our commute and drive times guide has the details.
Why Does My ZIP Code Matter When Moving to Lawton?
Your ZIP code drives more than just mail delivery. It determines which utility providers serve your address, which school district boundary applies, and it's the first filter most people use when searching for homes. When you're setting up electric, water, internet, and trash service, our utilities and services guide shows what's available across Lawton and Comanche County.
What's the Bottom Line on Lawton ZIP Codes?
Lawton's ZIP codes are simple once you know the pattern: 73501 for central and south Lawton, 73503 for Fort Sill, 73505 for the west side, and 73506 and 73507 for the north and northwest parts of the city. Around town, Elgin, Cache, Medicine Park, Fletcher, and Sterling each have their own code. Whether you're renting or buying, knowing the ZIP before you search makes the whole process smoother.
Travis Wright
REALTOR® · eXp Realty · License #206164
Travis Wright is an eXp Realty ICON Agent and one of eXp Realty's Top 250 Individual Agents in the United States, RealTrends Verified, specializing in move-in-ready new construction in Elgin, military PCS relocation to Fort Sill, and helping Southwest Oklahoma homeowners sell their homes. A Southwest Oklahoma native, he knows the neighborhoods, schools, and drive times across the Lawton-Fort Sill area firsthand.
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