Kingsville ZIP Code Directory Coverage
Official USPS material verifies two Kingsville ZIP codes in the reviewed sources: 78363 and 78364. A specific street should still be checked in the USPS tool because ZIP codes are postal routing areas, not neighborhood or ownership boundaries. The Postal Bulletin lists Kingsville, Texas 78363, while official routing material groups 78363 and 78364 under KINGSVILLE TX 78363. County and city mailing addresses show why both numbers appear in Kingsville records.
| ZIP code | Areas covered | Post office or routing note | Records note |
|---|---|---|---|
| 78363 | Kingsville, Texas | USPS Postal Bulletin lists KINGSVILLE TX 78363; official facility material identifies 103 E Kleberg Avenue with this ZIP | Use the USPS exact-address result for a particular street |
| 78364 | Kingsville, Texas | USPS routing tables group it with 78363 under KINGSVILLE TX 78363 | Used in official PO Box mailing addresses; do not call it exclusively PO-box-only |
| 78365 | Not verified as serving Kingsville | No serving-Kingsville entry was located in the reviewed USPS sources | Confirm an exact address with USPS before using this ZIP in research |
The 78365 row is a research boundary, not a negative claim about every nearby postal address. It means no official source reviewed here verified it as a Kingsville-serving ZIP. Postal results can change, so query the address itself.
For the published routing context, see the USPS Postal Bulletin entry.
The USPS source supports the routing distinction between the commonly seen Kingsville ZIP forms.
Kingsville ZIP Code Lookup Modes
The official USPS ZIP Lookup has three useful modes. By Address takes a street address and core city and state fields, with optional company, unit, and ZIP fields. By City and State requires both locality fields. Cities by ZIP requires the ZIP itself. Begin with the entire street address where possible, especially when a directory, deed, or county record uses a similar but not identical street form.
| By Address | Company; Street Address; Apt/Suite/Other; City; State; ZIP Code. Street address and city/state are the core inputs. |
|---|---|
| By City and State | City and State are required, making this a postal-locality check rather than a parcel search. |
| Cities by ZIP | ZIP Code is required and returns postal-city routing information. |
| Find | The visible action for each mode; retain the standardized output and the date checked. |
USPS warns that a returned address or ZIP does not confirm a person or company at that location. Use the output to normalize spelling, unit form, city line, and ZIP before moving to another record system. It is not a resident result.
Kingsville ZIP Code Directory and Two ZIPs
County and city offices use both 78363 and 78364 in their published addresses. The Kleberg County Clerk’s PO Box 1327 is in Kingsville 78364, while the courthouse uses its street location at 700 E Kleberg Avenue. The Kleberg County Appraisal District uses a 78363 physical address and a 78364 PO Box. These are normal distinctions between delivery, mailing, and physical-location fields.
Do not convert 78364 into a universal PO Box label. The reviewed USPS material associates both ZIPs with the Kingsville routing context, but it does not supply a classification that supports that broad statement. When a ZIP causes a missed county search, retain the record’s original mailing form and try the standardized street or parcel identifiers instead.
Insider tip. A Kingsville ZIP narrows postal geography, but the CAD form has no visibly rendered ZIP filter, so move from ZIP to street, property ID, or geographic ID.
Finding Residents by Kingsville ZIP Code
A ZIP can be one part of a careful name search. The official VoteTexas lookup uses name, county, date of birth, and ZIP together. For a postal question, USPS should come first. For a parcel question, the next key is the standardized street form or CAD property identifier. For a county instrument, the legal description or party name is normally more useful than a ZIP. These systems are complementary, not interchangeable.
- Enter the complete address in USPS By Address and preserve the returned standardized postal line and ZIP.
- Use the city-and-state or ZIP mode only when an exact street is unavailable, then record that the result is routing information.
- For an election question, use VoteTexas with the person’s name, Kleberg County, date of birth, and ZIP; treat a result as registration information.
- For a parcel question, search Kleberg CAD by simple street number and street name, then save the property or geographic ID.
- For a recorded-land question, use the CAD legal description to search the current County Clerk system or historic Kofile index.
Once a ZIP has narrowed the geographic question to a particular street, use the Kingsville by-street directory for the full address-to-parcel process. That route keeps delivery geography separate from assessed ownership, title, and historical listings.
Kingsville ZIP Code Directory Search Fields
VoteTexas is the local public-record route with a visibly captured ZIP field. It requires a name, county, date of birth, and ZIP to find registration and polling information. The ZIP acts as a discriminator. It is not proof of current occupancy, and confidential or suppressed records may not show a residence. For public voter-list procedure, the Kleberg voter registrar can be reached at 361-595-8542.
| Name | Identifies the voter search subject; keep spelling variants separate. |
|---|---|
| County | Use Kleberg for a Kingsville election lookup. |
| Date of birth | A lookup control, not a detail to republish. |
| ZIP | Helps narrow a record but does not prove present residence. |
| Find/Search | Returns registration and polling-place information under applicable limits. |
The VoteTexas tool is distinct from a statewide voter-file request. The Secretary of State request form uses county, district, precinct, or statewide geography and requires an affidavit, delivery choice, deposit, and payment. It is not a ZIP-only download.
Kleberg CAD’s rendered form has owner, street number, street name, property ID, geographic ID, subdivision, condo, neighborhood, and tax-year fields, but no visible dedicated ZIP field. The official search tips say to enter the street name without a prefix, suffix, or unit number. That is the correct handoff after postal normalization.
Kingsville ZIP Code Boundaries and City Limits
A postal city, the incorporated City of Kingsville, Kleberg County, and the city’s extraterritorial jurisdiction are different geographies. The 2025 Census boundary map depicts city limits and nearby roads, while city planning maps show local city-limit and ETJ context. A Kingsville mailing city or ZIP can belong to a parcel outside the incorporated city. Conversely, a city record and a postal result may use different geographic lines.
The Census address search can help identify census geography after USPS has standardized the address. It does not replace the parcel, city-limit, or postal source. City Planning at 361-595-8055, the county addressing coordinator at 361-595-8593, and CAD at 361-595-5775 are the appropriate local fallbacks when the city, ETJ, county, and postal answers do not align.
For the interface used to check an address against Census geography, consult the Census address search.
The Census tool helps with geographic context, while USPS remains the authority for standardized delivery routing.
- ZIP code
- A postal-delivery routing construct, not a legal city-limit or parcel boundary.
- ZIP+4
- An added delivery segment supplied for a particular standardized address when available.
- PO Box ZIP
- A ZIP used for post-office-box mailing; its existence does not establish a universal classification for every local use.
- Carrier route
- A postal delivery grouping that is not a neighborhood, ownership district, or resident roll.
Kingsville ZIP Code Directory Record Routes
ZIP can also be a narrow field in the Texas unclaimed-property search. ClaimItTexas requires last or business name and first name, with optional city, property ID, and current ZIP fields. It can be a lead for a name-and-location question, but claim details are confidential and the state process is free. The result should not be converted into a residence claim.
For an address that leads to a county record, use the city or county custodian that actually holds the requested material. City permit, inspection, or code files are requested through the City of Kingsville’s written open-records process, with an address, record type, and date range. County property and deed research moves from CAD street or geographic identifiers to the County Clerk’s current land records or historic Kofile index. A ZIP is a useful beginning, not the final search key.
Note: When an address is in an ETJ or unincorporated area, confirm the responsible city or county office before requesting a record.
Kingsville ZIP Code Directory Address Meanings
Keep the postal address distinct from related fields. The situs address is the physical parcel or building reference used by CAD, GIS, permits, and code records. A deed’s grantee mailing address is where record or tax mail was sent and can be outside Kingsville. A legal description identifies the abstract, survey, subdivision, lot, or block for the recorded instrument. If a street or ZIP search fails, the legal description can provide the next county-record key.
City directories and newspapers may omit a ZIP, use a rural route, or show a telephone-era address form. Preserve the historical line as printed. Add a later USPS-normalized address only with the date of normalization. Do not rewrite a 1911, 1954, or other historical address as 78363 or 78364 without an authoritative crosswalk.
Kingsville ZIP Code Directory Boundary Caution
Use the tool that matches the question. USPS answers delivery routing. Census and city planning maps answer geographic context. CAD and GIS answer parcel context, subject to their own recorded limits. The County Clerk’s indexes answer recorded instrument questions. VoteTexas answers a limited registration question. A ZIP should narrow the path, not combine these different records into a claim about a person or a property.
Privacy limit. Do not use a postal result, voter result, or parcel lead to reconstruct a protected address or to stalk, harass, intimidate, or harm anyone.