Sherman, TX Zip Codes: Map, County, and Real Estate Guide for 2026

Sherman, TX is growing - roughly 384 homes are currently on the market, and the median home price sits around $279,800. If you're buying a home in Sherman, TX, you probably already know that northern Texas is drawing serious attention, and most buyers start by narrowing down location. That means understanding the local postal codes before you start scheduling showings.

The city is the economic and governmental center for the surrounding region. Zip code boundaries dictate specific neighborhoods, schools, and commute routes across the Sherman-Denison area.

Primary Zip Codes for Sherman, TX

Sherman runs on two standard postal codes for residential and commercial delivery: 75090 and 75092. The 75090 zip code covers the eastern portion of the city, including the historic downtown core.

The 75092 zip code covers the western side. There's also a third code - 75091 - but that one is reserved exclusively for Post Office Box addresses and doesn't correspond to any physical street boundaries. It won't show up in a home search.

Complete List of Sherman Postal Areas

The United States Postal Service divides Sherman into distinct delivery zones. When you search for homes here, listings will almost entirely fall into either 75090 or 75092.

The 75090 area covers the older, established sections of the city - landmarks like the Paul Brown United States Courthouse and the central business district are in this zone. If you're drawn to historic homes and established commercial spaces, this is where you'll be looking.

The 75092 area stretches across the western and newer sections of Sherman. This side of town has seen varied development over the years. Across the broader Sherman market, homes are spending about 78 days on the market before selling, so you have reasonable time to be deliberate.

Sherman Zip Code Boundaries and Map

The dividing line between 75090 and 75092 runs generally north to south, splitting the historic eastern core from the western neighborhoods. It's worth pulling up a boundary map before you get too far into your search.

A property's specific postal zone matters more than most buyers expect. That designation can occasionally influence routing for local services, delivery schedules, and mail routing - small things, but worth knowing upfront.

Grayson County and the Sherman-Denison Metro Area

Sherman is the county seat of Grayson County, Texas, and all of the city's zip codes fall entirely within that single county's jurisdiction.

The city also anchors the Sherman-Denison, TX Metropolitan Statistical Area - a single-county MSA covering all of Grayson County. What that means practically is that real estate data and economic metrics for the region are closely tied to these central postal zones. When you see market stats for the MSA, they're largely reflecting what's happening right here.

Sherman Neighborhoods by Zip Code

If you're drawn to historic architecture or walkable streets, the 75090 zip code is where you'll spend most of your time looking. This eastern section holds the historic downtown district and the heritage neighborhoods that surround it.

One area worth knowing specifically is Olde Towne. It sits southwest of downtown Sherman, near Austin College, and it delivers high walkability alongside the kind of established, tree-lined streets that newer subdivisions simply can't replicate. Buyers who want character over square footage tend to land here.

Telephone Area Codes for Sherman

Phone numbers in Sherman, TX run under the 903 area code, which serves a large portion of Northeast Texas - including all of Grayson County.

Population growth has created enough demand for new numbers that the region also uses an overlay area code. If you're a new resident setting up a landline or local cell service, you might receive a 430 area code instead. It covers the exact same geographic footprint as the 903 prefix, so don't let it throw you off.

Finding Your Full Nine-Digit Zip Code

The five-digit codes - 75090 and 75092 - handle most purposes, but the USPS assigns an additional four digits to every specific address. That ZIP+4 format automates mail sorting and pinpoints a specific block, apartment building, or street segment.

You can find the full nine-digit code for any Sherman property through the official address lookup tool on the USPS website. Plug in the street number and name and it'll return the exact ZIP+4 extension for that house.

Real Estate Trends Across Sherman Zip Codes

The Sherman housing market currently carries about 5.6 months of supply - enough inventory that you can actually tour your options without panic-buying. Across both main zip codes, homes are selling for roughly 96.9% of their list price on average.

Bidding wars aren't the norm for every property, but about 6.4% of homes in the area still sell above asking price. Review recent sales data for your specific target zip code before you put together an offer - the mix of historic homes versus newer construction affects where prices land in each zone.

Common Questions About Sherman, TX Zip Codes

How do median home prices compare between the 75090 and 75092 zip codes in Sherman?

The median sale price for the overall Sherman market is roughly $279,800. The 75090 zip code contains the historic core and Olde Towne, while 75092 covers the western side of the city. Exact median prices fluctuate month to month for each specific zone, depending on the mix of historic homes and newer properties that actually closed.

Which Sherman zip code is seeing the most new housing development near the tech sector expansions?

Development occurs across the city, with 75092 generally covering the western half of Sherman. If you want subdivision-specific data, check current Grayson County building permits - the overall market holds about 384 available listings at any given time, but permit activity gives you a clearer read on where new construction is actually moving.

Do property tax rates or utility providers change depending on which Sherman, TX zip code I buy in?

Both primary zip codes - 75090 and 75092 - fall within Grayson County and the city of Sherman. That said, verify exact utility providers and tax assessments by the specific property address. Boundaries for municipal services don't always align perfectly with postal routes.

How do the 75090 and 75092 zip codes align with Sherman Independent School District boundaries?

Postal zip codes and school district boundaries operate independently. Both 75090 and 75092 serve Sherman, TX, but you'll need to check the specific street address on the district's boundary map to confirm which campus a property is actually zoned for. Don't assume zip code equals school zone.

Are there areas within Sherman's zip codes that fall outside city limits and require a septic system?

Yes. Both 75090 and 75092 extend into parts of Grayson County that sit outside the municipal city limits. Properties in those outer county areas often rely on private septic systems rather than city sewer connections - something you'll want confirmed before you make an offer.

If I am looking for historic homes versus new construction, which Sherman zip code should I search?

For historic properties, focus on 75090. That zone includes the eastern historic core and neighborhoods like Olde Towne, which sits near Austin College and is known for its heritage homes.