Kaufman County is roughly 807 square miles of Blackland Prairie southeast of Dallas, and it is the fastest-growing rural county in the region — the U.S. Census Bureau ranked it among the fastest-growing counties in the nation by percentage in its 2025 estimates. That growth is the defining fact here. Tight black clay, no groundwater conservation district, and a development frontier moving east down US 175 and I-20.
Kaufman is the county seat, about forty-five minutes from downtown Dallas. Three corridors do most of the work: US 175 southeast through Crandall and Kaufman toward Athens, Interstate 20 across the north end through Terrell, and US 80 a few miles south of it. SH 34 and SH 205 carry north-south traffic.
Frontage drives what a tract becomes. A parcel on a paved farm-to-market road twenty minutes from Forney is a development hold whether the seller says so or not. The same acreage on a county road south of Kemp is grazing land, and it will price and finance like it.
Kaufman sits almost entirely on the Blackland Prairie. The Texas State Historical Association puts 788 of the county's square miles in that region, with the eastern margin softening toward Post Oak country. Most people buying here are going to build something, so the useful way to read the clay in Kaufman County is by what it does to a project between contract and move-in:
The county drains two directions. The East Fork of the Trinity River and its tributaries take the western half. Cedar Creek takes the eastern half and feeds Cedar Creek Reservoir in the south of the county — which puts lake-adjacent recreational acreage into the same county as row-crop bottomland and suburban-edge development ground.
Item | Kaufman County |
|---|---|
County seat | Kaufman |
Approximate area | 807 square miles |
Position | Southeast of Dallas, US 175 / I-20 |
Ecological region | Blackland Prairie, grading east toward Post Oak Savannah |
Dominant soil | Deep black shrink-swell clay |
Surface water | East Fork of the Trinity, Cedar Creek, Cedar Creek Reservoir |
Appraisal district | Kaufman County Appraisal District (Kaufman CAD) |
Groundwater conservation district | None — Kaufman County is not within a groundwater conservation district |
Typical rural use | Cow-calf, hay, horse property, lake recreation, development hold |
No. Kaufman County is not within a groundwater conservation district. Neither is neighboring Rockwall or Hunt. When the TCEQ studied the Northern Trinity and Woodbine aquifers for priority designation, Kaufman was not among the counties recommended for district coverage.
That cuts both ways. No district permit, no production fee, no spacing rule — the rule of capture applies, and under Edwards Aquifer Authority v. Day (Tex. 2012) you own the groundwater in place beneath your land. Nobody is regulating your neighbor either. Pull the driller's log and test yield and quality yourself, because no district file will. See our water rights guide.
Surface water is different. Under Texas Water Code §11.142 you may impound up to 200 acre-feet for domestic and livestock use without a permit. Commercial operations are excluded.
Through the Kaufman County Appraisal District, and only through them. There is no statewide minimum acreage for 1-d-1 open-space valuation — each district writes its own degree-of-intensity and acreage standards, and Kaufman CAD's differ from Collin's and from Van Zandt's.
Three things buyers here miss:
Both, and the line is geographic. North along I-20 toward Terrell and Forney, tracts trade on rooftop demand and the questions are entitlement and utility capacity. South and east toward Kemp and the Cedar Creek arm, the same acreage trades on grass, water, and cover.
Usually, but yield and quality vary across the county and no groundwater district is collecting data to tell you what to expect. Ask for the driller's log, flow-test the well, test the water. Rural water supply corporations serve much of the county — confirm meter availability and tap cost in writing.
A foundation designed by an engineer who has read a soils report on your tract, because shrink-swell clay moves seasonally. Septic gets scrutinized too — tight clay percolates poorly, conventional drain fields often fail, and an aerobic system may be required. See building on rural land.
Everything from ten-acre homestead tracts along the FM roads to several-hundred-acre working places in the southern half. Large contiguous blocks are getting scarce near the growth corridors. Current per-acre pricing by submarket is available on request.
Sources and method
Texas Tax Code §23.51 et seq. and §23.55 (as amended by HB 1743, 86th Legislature, effective September 1, 2019, and HB 3833, 87th Legislature, effective June 15, 2021) · Texas Water Code §11.142 · Edwards Aquifer Authority v. Day, Tex. 2012 · Kaufman County Appraisal District · Texas Water Development Board and TCEQ groundwater conservation district records · Texas State Historical Association, Handbook of Texas · U.S. Census Bureau county population estimates · Figures verified August 2026.
County appraisal districts set their own degree-of-intensity and acreage standards. Confirm current requirements with the appraisal district for the county your land sits in before you rely on anything here. This is general information, not tax or legal advice.
We have walked a lot of Kaufman County dirt, and we will tell you plainly when a tract is priced as development ground and grazes like pasture. Call us before you write the offer.
More: North Texas land · Texas Land & Ranch · Land due diligence checklist
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