Rockwall County, Texas
23 local notes for Rockwall County — practical, plain-English, and pointed at the official source to confirm. DFW / North Texas.
Money & Taxes
Property Tax Basics
Two offices handle your property taxes in Rockwall County
Rockwall County splits property tax duties between two separate offices, and knowing which does what saves you a wasted trip.
Homestead Exemption
Homestead exemption cuts your school tax bill in Rockwall County
Texas law requires every school district to give homeowners a $140,000 exemption on their home's appraised value, which directly lowers your tax bill.
Senior & Disability Exemption
Extra homestead exemption for seniors and disabled homeowners in Rockwall
Homeowners aged 65 or older, or those with a qualifying disability, get an extra $60,000 off their home's school district appraised value.
Ag Valuation
Agricultural valuation can lower taxes on rural land in Rockwall County
Land used for farming, ranching, or wildlife management may qualify to be taxed on its farm productivity value instead of its market value, which is often much lower.
Special Districts
MUD and PID districts add extra charges to your property tax bill
New subdivisions in Rockwall County often sit inside Municipal Utility Districts or Public Improvement Districts that add separate charges on top of your regular property taxes.
Appraisal Protest
You can protest your property appraisal in Rockwall County each year
If you think the Rockwall Central Appraisal District overvalued your property, you have the right to protest — and the deadline matters.
Home & Property
Flood Zones
Check FEMA flood maps before buying property near creeks or the lake in Rockwall County
Parts of Rockwall County along creeks and the East Fork Trinity River sit in FEMA-designated flood zones that require flood insurance for federally backed mortgages.
Severe Weather
Tornadoes are a real seasonal threat in Rockwall County
Rockwall County sits in North Texas where spring and fall storms bring real tornado and large hail risks that homeowners should plan for.
City vs. County Jurisdiction
Where you live in Rockwall County — city, ETJ, or unincorporated — changes the rules
Rockwall County has several cities. Each city also has an ETJ — a strip just outside its border. Some city rules apply there even if you are not inside city limits.
Water & Utilities
Water service in Rockwall city is governed by city ordinance
The City of Rockwall runs water service within city limits and sets the rules for connections, usage, and billing through its city ordinance.
Cars & Driving
Vehicle Emissions
Your car needs an emissions test every year in Rockwall County
Rockwall County is in the Dallas-Fort Worth emissions testing area, so most gasoline-powered vehicles registered here must pass an annual emissions inspection to renew registration.
Registration & Inspection
How vehicle registration renewal works in Rockwall County
As of January 2025, Rockwall County vehicles no longer need a safety inspection. But you still need an annual emissions test before you can renew your registration.
Outdoors
Lake & Recreation
Lake Ray Hubbard borders Rockwall County and offers public access
Lake Ray Hubbard is a large reservoir that forms the western edge of Rockwall County and provides fishing, boating, and shoreline access close to the DFW metro.
Water Supply
Lake Ray Hubbard is a Dallas water supply reservoir, not just a recreation lake
Lake Ray Hubbard was built by the City of Dallas to supply drinking water, and Dallas Water Utilities still owns and operates the dam today.
Rules & Licenses
Fishing License
You need a Texas fishing license to fish Lake Ray Hubbard
Anyone fishing in Lake Ray Hubbard must have a valid Texas fishing license, and you should also know the state's rules for preventing the spread of aquatic invasive species.
Short-Term Rentals
The City of Rockwall requires a permit for short-term rentals
If you plan to rent your home on Airbnb or similar platforms within the City of Rockwall, you must get a permit from the city before you list.
History & Culture
County Identity
Rockwall is the smallest county in Texas by land area
At only 147 square miles, Rockwall is the smallest county in Texas — a fact that shapes everything from its rapid growth to the tight-knit feel of its communities.
Place Name Origin
The county gets its name from a strange underground rock formation
In 1851, farmers digging a well found a strange rock wall running underground. That formation gave the county and its county seat their names.
County History
Rockwall County was created in 1873 from Kaufman County
Settlers in the area pushed for their own county in the 1870s because the Kaufman County seat was inconveniently far away — and the Texas legislature agreed.
Early Settlement
Rockwall County's first Anglo-American settler arrived in 1846
John O. Heath was the first Anglo-American settler in the area, arriving in 1846 when the land was still part of Kaufman County.
Growth & Development
Rockwall County grew from 7,000 people in 1970 to over 100,000 by 2019
Once a quiet agricultural county, Rockwall has become one of the fastest-growing parts of the DFW metro since Lake Ray Hubbard opened in 1969.
Indigenous History
Caddo people lived in the Rockwall County area before Anglo settlement
The area that is now Rockwall County was home to Caddo and Creek peoples in the early 1800s. Anglo-American settlers arrived in the 1840s.
Agricultural History
Railroads transformed Rockwall County from a cattle county to a cotton county
Before the railroads came in the 1870s and 1880s, Rockwall County's economy was built on cattle — the railroads shifted it toward cotton, which peaked in 1930.