Jefferson County, Texas GIS data

Free, from the source. The Texas Geographic Information Office's statewide StratMap parcel layer carries Jefferson County's parcels from the county appraisal district, tax year 2026, collected in September 2026. The appraisal district's own property search is listed under local sources above. TxGIO's DataHub also offers the county's parcels as a free shapefile download. Data resellers charge for copies of the same records. Add the layer to a Felt map by URL to filter, measure and share parcels with your team.

Only inside city limits. Texas counties have no general zoning power, so unincorporated land in Jefferson County is unzoned. Unzoned is not unregulated: Texas counties review subdivision plats and septic systems, and most permit development in the floodplain. Each city decides whether and how to zone. The city limits layer shows which city, if any, governs a site, and city planning, GIS and zoning pages are listed under local sources above.

With the county clerk, not the appraisal district. Deeds, plats, easements and other real property records are recorded by the Jefferson County Clerk; the appraisal district's records and parcel maps are for property tax, and its boundaries are approximate, not a survey. The clerk's office is listed under local sources above. For a property's legal boundary, the recorded plat or a licensed surveyor's survey is the authority.

Rural Texas land is described by its original survey, abstract number, and block and section. The Railroad Commission's public GIS viewer maps survey lines with their abstract numbers across the state, along with oil and gas wells and pipelines, and offers the same layers as free county downloads. The General Land Office holds the original survey and land grant files, searchable by county and abstract number, and 783 historic maps of Jefferson County, from county maps to surveyors' working sketches. All are listed under local sources above.

9 cities and towns lie mostly inside Jefferson County: Beaumont, Port Arthur, Nederland, Groves, Port Neches, China, Bevil Oaks, Nome and one smaller town. The Census Bureau's current boundaries for incorporated places map each one.

FEMA's National Flood Hazard Layer has no countywide digital flood map for Jefferson County, so it gives no countywide floodplain figure. Its effective flood maps are paper, and FEMA issued preliminary countywide digital maps in 2015 that are not yet effective; the Map Service Center shows both. For a specific property, look up the effective map at FEMA's Map Service Center.

HIFLD maps 261 miles of transmission line inside Jefferson County: 189 mi at 138 kV and 72 mi at 230 kV. It marks 187 of those miles in service and records no status for the rest. The live map colours each line by voltage.

$59,934, against $76,292 for Texas (ACS 2019–2023 5-year estimates). Across the 72 of its 76 census tracts (2020 boundaries) with an estimate, tract medians run from $21,232 to $139,173, with a median across tracts of $56,145.