Stephenville ZIP Code Coverage
Official sources identify two strong Stephenville postal anchors, 76401 and 76402. The first is the standard city postal label and the second is used for Tarleton State University campus mail. A USPS delivery-label document also places 76437 in a row associated with the Stephenville label, but the available source does not show that every 76437 address belongs inside the city. The ZIP code directory therefore treats those facts at their actual strength, rather than drawing a street-by-street boundary that official sources did not provide.
| ZIP | Verified local coverage | Post office | Record-search note |
|---|---|---|---|
| 76401 | Standard Stephenville postal city and ordinary city or county service address | Stephenville Post Office, 431 N Graham Street | Postal area and city limits are not identical by default |
| 76402 | Tarleton State University campus and institutional mail | Tarleton State University Post Office | Do not infer a private household or campus affiliation from ZIP alone |
| 76437 | Appears in a USPS delivery-label row associated with Stephenville | Official local office not located | Delivery-label clue only, not a city-limit finding |
There is no official address-range table in the research for every street in these service areas. Preserve the city and ZIP exactly as a source gives them, along with the date. That is more reliable than translating a postal label into a claim about incorporation, parcel jurisdiction, or current residence.
Stephenville 76401 Postal Anchor
The USPS Stephenville location is at 431 N Graham Street, Stephenville, TX 76401-9998. It supplies a practical place to verify the standard local postal label and to check current retail hours before a visit. The postal location does not establish the full extent of the 76401 delivery area. Use it to validate an address format, then compare an exact parcel or municipal address when a record question depends on jurisdiction.
The USPS location listing provides the visible 76401 label and post-office details.

Use the postal result as an address-format check. It is not a ZIP-wide list of residents, a parcel ownership screen, or a map of city limits.
Stephenville 76402 Campus Mail
Tarleton State University Post Office uses Stephenville, TX 76402 for campus mail. Its published student format uses 1452 W Jones with a T-number, while department mail uses 201 N Saint Felix with a T-number. The post office lists a weekday window and an outgoing downtown pickup, details that make 76402 a useful institutional-address signal. They do not identify a student, staff member, or ordinary resident.
The Tarleton mail-format page shows how the campus distinguishes institutional delivery from the ordinary 76401 postal anchor.

This contrast is a useful geography check in the Stephenville ZIP code directory. Treat 76402 as a campus-mail context, then seek the appropriate official record for a person or property question.
Stephenville ZIP Code Search Steps
There is no captured official portal that returns a browsable list of Stephenville residents by ZIP. ECAD does not expose a dedicated ZIP-wide result field in its captured search form, and VoteTexas individual status is based on VUID, a supplied driver-license number, or a name rather than a public ZIP roster. A ZIP is still useful as a starting filter because it helps validate the place before an address or record-specific search.
ECAD’s captured form has Owner, Address, ID, and Advanced tabs, with fields such as Street Number, Street Name, Property ID, Geographic ID, and Legal Description. Its own hint says to try a simple street name if a full address fails. That makes ECAD a follow-up once an exact address has been identified, not a way to browse a postal area for people. The district also says its database is for research and that legal descriptions and acreage should be verified with ECAD. Keep the search result and the ZIP as separate, dated pieces of evidence.
- Verify the exact mailing format through USPS. Keep the ZIP+4 when it is supplied, but do not treat it as a neighborhood boundary.
- For a known Stephenville address, use ECAD’s Street Number and Street Name fields separately if the full address does not return a result.
- Check the ECAD parcel, property ID, geographic ID, or legal description. That identifies the appraisal-record route rather than creating a ZIP-wide people list.
- Use the relevant official index for the actual question, such as a license status search or individual voter-status check, and compare its date and jurisdiction.
- For a disputed location, compare USPS formatting with the city limits or ETJ map, county 911 address information, and the ECAD parcel.
Once the ZIP has narrowed an address, use the Stephenville street directory for the separate street and parcel workflow. A postal search should not replace that address-specific research.
Note: A ZIP-based lead becomes useful only when an official record supplies a matching address, parcel, or dated public role.
Stephenville ZIP Code Fields
The Texas Department of Licensing and Regulation administrative-orders search has an explicit ZIP Code equal field. It is statewide and covers current and prior two fiscal years, so it is a professional-record filter rather than a local resident list. One parameter is required. The screen also accepts license, name, company, city, and county information, which can help distinguish the right public record after a ZIP is known.
| TDLR field | Input and search behavior |
|---|---|
| License Program Type | Select a program category. |
| License Number | Contains search. |
| Last Name or First Name | Begins-with search. |
| Company Name | Begins-with search. |
| City or County | Select from the available values. |
| ZIP Code | Equal search; one parameter minimum applies. |
The TDLR search form displays the ZIP, city, county, name, company, program, and license filters.

A result from this search speaks to an administrative-order record in the stated coverage, not to private occupancy or a complete Stephenville population.
Stephenville Postal Geography
One Stephenville address can sit in several geographies at once: city limits, Erath County, ECAD, a USPS ZIP, a Census ZIP Code Tabulation Area, and sometimes a Tarleton institutional zone. Each one answers a different question. The Census ZCTA guidance says ZCTAs are generalized statistical areas, not USPS delivery routes. They are useful for context, not for proving that a particular mailbox, parcel, or person falls in a postal area.
This geography difference is why the Stephenville ZIP code directory distinguishes postal information from civic records. ECAD relates property and parcel information to appraisal geography; the City GIS describes roads, addresses, parcels, and zoning; and USPS assigns delivery formatting. A reader should keep the source label with each result instead of merging those systems into one boundary.
Stephenville is the Erath County seat and a local access point for a wider rural county. County records may be organized at Stephenville offices even when a subject lives outside city limits, while a city record can concern an address inside the municipal boundary. A 76401 string does not resolve that difference. Record the exact postal string, the record date, and the custodian before deciding whether a result belongs to the city, the county, or an institutional address.
Stephenville ZIP Code Boundaries
A Stephenville mailing label is not proof that an address is inside the incorporated city. The research found no official block-by-block ZIP boundary table, no complete neighborhood-by-ZIP list, no postal realignment history, and no list of addresses where the city line and delivery label disagree. The documented 76401 and 76402 anchors, plus the 76437 delivery-label clue, are the facts available. They should not be expanded into a map that has not been published by the responsible office.
For a boundary-sensitive record, compare the exact address with the city’s GIS and map service, the ECAD parcel, the county 911 addressing route, and USPS formatting. The ECAD viewer timed out during the research capture, so no live map-control or ZIP-filter claim is made here. Keep the original address wording when records disagree.
A sound result note separates the delivery ZIP from the source that actually establishes a location. For example, a parcel card can identify a property or geographic ID, an official city map can place a road or zoning context, and a county address record can address assignment. A postal lookup checks the mailing format. Each can support the next check, but none should silently stand in for all the others.
Stephenville ZIP Address Rules
ZIP terms help read an address, but none establishes ownership, residency, or city jurisdiction by itself.
- ZIP and ZIP+4
- A base ZIP identifies a delivery area. ZIP+4 adds delivery detail to that postal code.
- PO-box ZIP
- A postal code used for boxes rather than a street delivery point.
- Unique ZIP
- A code used for a single institution or large addressee, like the Tarleton campus-mail signal.
- Carrier route
- A postal delivery grouping, not a city district or a list of households.
For ECAD, try the street number and a simple street name separately. For a deed, use the owner name, legal description, or book and page. For the city map, use the address, parcel, or road. Those search routes keep postal normalization in its proper place: a way to find the right location, not a substitute for the underlying Stephenville record.
Stephenville GIS maintains roads, utilities, addresses, and parcels for Community Development, while county 911 addressing is a distinct route. When a returned street form seems wrong, compare the road name, parcel or geographic ID, legal description, and original source spelling before changing the query. This is especially useful for a historical address, where a present-day postal format may not match the wording in a deed, newspaper, or archive.
Address check. Preserve the original address spelling, then use USPS suffixes only as a search variation when an official index does not return it.