County · code 48203
Harrison CountyTexas
Harrison County, in east Texas, is a county of about 900 square miles with its seat in Marshall. The county was created by the Republic of Texas on January 25, 1839, from Shelby and Miller counties and named after Jonas Harrison.
- Founded1839
- County seatMarshall
- Named forJonas Harrison
- Land area900 sq mi + 16 sq mi water
- Population68,839 2020 Census
- Parcels mapped51,336 checked 14 October 2026
Where it is
Harrison on the map of Texas
Texas has 254 counties and county equivalents, each with its own records office. Shapes with a page are links.
History
Formed in 1839 from Shelby County and Miller County
An old deed may name a county that no longer exists, or a boundary that has since moved.
Harrison County was created in 1839 from Shelby and Miller counties but was not fully organized until 1842. The county experienced several boundary changes in its early years, including exchanges with Shelby and gains and losses with Panola, Smith, Rusk, Bowie, and Upshur counties. When Texas became a state in 1845, Harrison became one of its counties, and by 1846 had largely reached its current boundaries following the creation of neighboring counties.
- 1839Harrison County created Harrison created by the Republic of Texas from Shelby, overlapped part of Miller (Ark. Terr. extinct); Harrison not fully organized.from Shelbyfrom Miller· Texas Repub. Laws 1838, 3d cong./p. 143
- 1841Exchanged territory Harrison exchanged with Shelby, lost to creation of Panola (Judicial County). · Texas Repub. Laws 1840, 5th cong./ pp. 153-155
- 1844
- 1844
- 1845Became part of Texas Harrison became a county in the newly-established state of Texas. · Texas Repub. Laws 1845, 9th cong., spec. sess./pp. 4-6; U.S. Stat., vol. 9, res. 1 [1845]/p. 108; Van Zandt, 122
Show all 15 changes
- 1839Harrison County created Harrison created by the Republic of Texas from Shelby, overlapped part of Miller (Ark. Terr. extinct); Harrison not fully organized.from Shelbyfrom Miller· Texas Repub. Laws 1838, 3d cong./p. 143
- 1840Changed Survey of boundary between the Republic of Texas and the United States began. Harrison overlap with Miller (Ark Terr., extinct) ended when Texas claims to the area were upheld.Miller· U.S. Stat., vol. 5, ch. 75 [1844]/p. 674; Marshall, 235-236
- 1841Exchanged territory Harrison exchanged with Shelby, lost to creation of Panola (Judicial County). · Texas Repub. Laws 1840, 5th cong./ pp. 153-155
- 1842Lost territory Harrison lost small area to creation of Smith (Judicial County). · Texas Repub. Laws 1841, 6th cong., 1st sess./pp. 87-89
- 1842Changed Harrison fully organized. · Gournay, 39-40
- c. 1842Gained territory Harrison gained from Panola (Judicial County) and Smith (Judicial County) when Republic of Texas Supreme Court ruled judicial counties unconstitutional. · "Stockton v. Montgomery" in Dallam, 473-486
- 1843Lost territory Harrison lost small area to creation of Rusk. · Texas Repub. Laws 1842, 7th cong./pp. 39-41
- 1844
- 1844
- 1845Became part of Texas Harrison became a county in the newly-established state of Texas. · Texas Repub. Laws 1845, 9th cong., spec. sess./pp. 4-6; U.S. Stat., vol. 9, res. 1 [1845]/p. 108; Van Zandt, 122
- 1846
- 1846
- 1858Lost territory Harrison lost small area to Upshur. · Texas Laws 1857, 7th leg., ch. 90/p. 105
- 1863Lost territory Harrison lost small area to Marion. · Texas Laws 1863, 10th leg., reg. sess., spec., ch. 9/p. 5
- 1874Lost territory Harrison lost to Marion. · Texas Laws 1874, 14th leg., reg. sess., ch. 127/p. 178
Land and parcels
What the maps cover in Harrison
Who publishes each layer, how good it is, and when we last checked.
-
Parcels Good enough
Lot lines and tax-map numbers for 51,336 parcels from Harrison County. Drawn for tax purposes: usually within a few feet of a survey, but not a survey.
edited 14 October 2026 · checked 14 October 2026 -
Address points Official
One point per address, 35,812 in all from Texas Geographic Information Office (TxGIO, formerly TNRIS), a division of the Texas Water Development Board; StratMap program.
checked 14 October 2026 -
Buildings Reference
Roof outlines traced from aerial imagery from FEMA Response Geospatial Office with Oak Ridge National Laboratory (ORNL). Good for seeing what is on a lot; not accurate enough to set a fence from.
checked 18 October 2026
- Official
- from the office that keeps the record
- Good enough
- a reliable statewide or national copy
- Fallback
- a guide only; check the official record
- Missing
- nothing public found yet
People and land
Harrison by the Census
Source: US Census Bureau, 2020 Census; US Census Bureau, 2020 Gazetteer Files. Not endorsed or certified by the Census Bureau.
Rules and offices
Who to ask before you build, dig or sell
Official county pages only. We link to them; we do not copy them, because they change.
Inside a city or town, permits usually come from that city rather than the county.
County government
- County government
The official website of Harrison County.
See your own lot on these maps
Open Harrison County on Parcel Chart's free map and click your parcel. Save it with a free account; the full record of your place (site map, projects, documents) is Pro, in early access.
Questions
Common questions about Harrison County
- When was Harrison County founded?
- Harrison County was founded in 1839, formed from Shelby County and Miller County, and named after Jonas Harrison.
- What is the county seat of Harrison County?
- The county seat of Harrison County is Marshall.
- Is there an online parcel map for Harrison County?
- Yes. Harrison County publishes a parcel map of 51,336 parcels, rated good enough here. You can click any parcel on it in Parcel Chart's free map, no sign-in needed.
- Has Harrison County's boundary or name changed?
- Harrison County was created in 1839 from Shelby County and Miller County. Since then the Atlas of Historical County Boundaries records 14 later changes, chiefly involving Panola County, Marion County and Rusk County.
- Who issues septic and well permits in Harrison County?
- The county's page on septic systems and wells: Health department: septic and well.
- Is my lot in a flood zone?
- We do not have flood maps for Harrison County yet. Look up the address on FEMA's Flood Map Service Center, which shows the effective flood map for any lot.
Nearby