Austin / Central Texas / Hill Country
Williamson County, Texas
A porch-side guide to the county: the stories that give it a shape, practical local checks, and a few things worth knowing before they surprise you. Every note points to its source.
19 stories · 28 practical · 5 good to know
The practical part
Williamson County offices and deadlines
Appraisal district & tax office →
The Comptroller's official directory for Williamson County: who sets your value and who sends the bill.
Homestead exemption →
File Form 50-114 with the appraisal district. It is free. The regular deadline is April 30, and late filing is allowed for up to two years.
Protest your appraisal →
The usual deadline is May 15, or 30 days after your notice arrives, whichever is later.
Estimate a tax bill →
Model a bill from local rates, the homestead exemption, and the appraisal cap.
Start here
A little of what makes this place itself
Georgetown · County Park
Berry Springs Park Has Creek Shade Near Georgetown
Berry Springs Park and Preserve gives Williamson County creek shade, an old pecan grove, trails, fishing, camping, and picnic space near Georgetown.
Georgetown · River Park
Blue Hole Park Is Georgetown's Limestone Swim Spot
Blue Hole Park is a no-fee Georgetown lagoon with limestone bluffs, South Fork San Gabriel River water, picnic areas, restrooms, and trails.
Cedar Park · County Park
Champion Park Mixes Creek Time and Dinosaur Play
Champion Park near Cedar Park has open space, picnic pavilions, Brushy Creek access, and a play area with dinosaur-bone casts.
Practical Turkey Season Only Applies West of I-35 in Williamson County Wild turkey hunting is only open in the western part of Williamson County, west of Interstate 35, with both fall and spring seasons available. Practical Deer Hunting Rules Differ on Each Side of I-35 in Williamson County TPWD sets different white-tailed deer bag limits for the east and west sides of Interstate 35 in Williamson County. Good to know The San Gabriel River Is the Only River in Williamson County The San Gabriel River runs through the center of Williamson County and is the county's only river, flowing through Georgetown and feeding Lake Georgetown.
All 52 local notes
The full county shelf is mixed so stories and useful checks travel together. Use the filters when you need one kind.
Showing all 52 notes.
- Stories & local character Outdoors Berry Springs Park Has Creek Shade Near Georgetown Berry Springs Park and Preserve gives Williamson County creek shade, an old pecan grove, trails, fishing, camping, and picnic space near Georgetown. Georgetown
- Practical Outdoors Turkey Season Only Applies West of I-35 in Williamson County Wild turkey hunting is only open in the western part of Williamson County, west of Interstate 35, with both fall and spring seasons available.
- Stories & local character Outdoors Blue Hole Park Is Georgetown's Limestone Swim Spot Blue Hole Park is a no-fee Georgetown lagoon with limestone bluffs, South Fork San Gabriel River water, picnic areas, restrooms, and trails. Georgetown
- Practical Outdoors Deer Hunting Rules Differ on Each Side of I-35 in Williamson County TPWD sets different white-tailed deer bag limits for the east and west sides of Interstate 35 in Williamson County.
- Good to know Outdoors The San Gabriel River Is the Only River in Williamson County The San Gabriel River runs through the center of Williamson County and is the county's only river, flowing through Georgetown and feeding Lake Georgetown.
- Stories & local character Outdoors Champion Park Mixes Creek Time and Dinosaur Play Champion Park near Cedar Park has open space, picnic pavilions, Brushy Creek access, and a play area with dinosaur-bone casts. Cedar Park
- Practical Rules & Licenses A New Driveway Onto a County Road Needs a Permit A driveway onto a Williamson County maintained road runs through the county permit process before the entrance gets built or changed.
- Stories & local character Outdoors Garey Park Is a Ranch-Scale Georgetown Park Garey Park is Georgetown's 525-acre city park along the South San Gabriel River, with trails, ponds, play space, a dog park, and horse facilities. Georgetown
- Practical Money & Taxes Agricultural Valuation Can Sharply Lower Rural Property Taxes Land used for farming or ranching in Williamson County can be taxed on its productivity value rather than market value, which is usually much lower.
- Good to know Outdoors Lake Georgetown Offers Fishing, Camping, and Hiking Lake Georgetown is a U.S. Army Corps of Engineers lake on the North Fork of the San Gabriel River, about 3.5 miles northwest of Georgetown, with camping, boating, and fishing.
- Stories & local character Outdoors Old Settlers Park Is Round Rock's Big Sports-and-Trail Park Old Settlers Park is Round Rock's largest park, with 645 acres, trails, sports fields, courts, open space, pavilions, and a water park. Round Rock
- Practical Rules & Licenses Alarm Systems Outside City Limits Need a County Permit The Williamson County Sheriff's Office requires an alarm permit for each system at a home or business outside incorporated city limits.
- Stories & local character Outdoors River Ranch County Park Gives Liberty Hill Room to Roam River Ranch County Park has meadows, woods, hills, trails, camping, river access, and a learning center between Leander and Liberty Hill. Liberty Hill
- Practical Home & Property Check Williamson County PID Assessments Before You Buy The Williamson County Tax Office lists Public Improvement District assessments that can appear on a property tax statement but are not ordinary ad valorem property taxes.
- Good to know Home & Property Brushy Creek Is Both a Flood Risk and a Water Supply Source The Brushy Creek watershed in central and eastern Williamson County is managed by the Upper Brushy Creek Water Control and Improvement District, which oversees flood control.
- Stories & local character Outdoors Brushy Creek Trail Links Parks and Neighborhoods Brushy Creek Regional Trail links creek views, parks, homes, and shops across southwest Williamson County. Cedar Park and Round Rock
- Practical Money & Taxes Extra Property Tax Breaks for Seniors and Disabled Homeowners Homeowners who are 65 or older, or who have a qualifying disability, can get an additional property tax exemption and a school tax freeze.
- Stories & local character Outdoors Southwest Regional Park Is a Big County Sports Hub This county park near Leander brings fields, courts, cricket, trails, a playscape, and a splash pad into one place. Leander area
- Practical Rules & Licenses Large Events May Need a Williamson County Mass Gathering Permit Williamson County's mass gathering process requires an early application and a county judge hearing before a qualifying large event.
- Good to know Home & Property Flooding Is a Real Risk in Williamson County Flash flooding regularly affects homes and roads in Williamson County, and FEMA flood maps were last updated in 2019.
- Stories & local character History & Culture Hutto's Hippo Story Became Civic Identity Hutto's official city history treats a 1915 hippo story as a local legend that grew into a school mascot and a town identity. Hutto
- Practical Home & Property LCRA Supplies Raw Water to Several Williamson County Communities The Lower Colorado River Authority is authorized to transfer up to 25,000 acre-feet of water annually into Williamson County under a state law.
- Stories & local character History & Culture Old Town Round Rock Grew Around the Actual Round Rock Round Rock's official history says Old Town grew around a low-water crossing marked by the actual round rock in Brushy Creek. Round Rock
- Practical Rules & Licenses New Rural Structures Need a Williamson County 9-1-1 Address Williamson County GIS and 9-1-1 Addressing assigns the addresses you need for utilities, emergency response, and new rural development.
- Good to know Home & Property Williamson County Gets Hot Summers and Significant Hail Storms Williamson County averages a July high of about 96°F and gets roughly 34 inches of rain per year, with severe thunderstorms and hail common in spring.
- Stories & local character History & Culture Round Rock Is the Largest City in Williamson County Round Rock, in the southern part of the county, is its largest city with over 110,000 residents, larger than the county seat of Georgetown.
- Practical Home & Property Parts of Williamson County Fall Under Edwards Aquifer Protection Review Western Williamson County can fall inside TCEQ's Edwards Aquifer zones, where construction may need plan review before work starts.
- Stories & local character Outdoors Brushy Creek in Williamson County Has Recorded Sport Fish Catches Brushy Creek in Williamson County is a recorded sport fishing waterbody tracked in TPWD's all-tackle records.
- Practical Cars & Driving Routine Williamson County Registration Renewals May Work at Neighborhood Locations Williamson County lists neighborhood renewal spots for routine vehicle registration renewals that meet county requirements.
- Stories & local character History & Culture Cotton Once Dominated Williamson County's Economy Williamson County was one of Texas's top cotton-producing counties in the late 1800s, with production peaking at over 80,000 bales in 1900.
- Practical Rules & Licenses Splitting Land Can Trigger Williamson County Plat Review Williamson County applies subdivision regulations to new land-development applications in its jurisdiction, even outside city limits.
- Stories & local character History & Culture Georgetown Was Named for a Land Donor, Not the President Georgetown, the Williamson County seat, was founded in 1848 and named for George Washington Glasscock, who donated land for the townsite.
- Practical Home & Property Stormwater Rules Matter for Williamson County Development Williamson County's stormwater program covers construction runoff, post-construction stormwater, and illicit discharge reporting in urbanized unincorporated areas.
- Stories & local character History & Culture Southwestern University Has Been in Georgetown Since 1873 Southwestern University, a private liberal arts school, has operated in Georgetown since 1873 and helped shape the town's identity.
- Practical Money & Taxes Texas Homestead Exemption Cuts Your School Tax Bill Williamson County homeowners who live in their home can apply for a $140,000 reduction off the value used to figure school taxes.
- Stories & local character History & Culture Williamson County Covers 1,137 Square Miles and Has Nearly 500,000 Residents Williamson County is a large Central Texas county at 1,137 square miles, with a population that has grown dramatically since the 1970s due to Austin's expansion.
- Practical Home & Property Used Manufactured Homes Need Ownership and Tax Paperwork in Williamson County Williamson County says TDHCA maintains manufactured home Statements of Ownership, while the county tax office provides the tax statement TDHCA requires.
- Stories & local character Home & Property A Geological Divide Splits Williamson County in Two The Balcones Escarpment runs through Williamson County, separating rocky Hill Country terrain in the west from flat blackland prairie in the east.
- Practical Money & Taxes Veterans with Service Disabilities Get a Property Tax Break Texas veterans with a service-connected disability rating of 10% or more qualify for a property tax exemption in Williamson County.
- Stories & local character History & Culture The Tonkawa People Lived Along the San Gabriel Before Anglo Settlement Tonkawa people had a village near what is now Georgetown before Anglo settlers arrived in the 1830s and 1840s.
- Practical Rules & Licenses Where You Live in Williamson County (City, ETJ, or Unincorporated) Matters Your property's location, whether inside a city, in the city's extraterritorial jurisdiction, or in unincorporated county land, determines which rules and services apply to you.
- Stories & local character History & Culture Williamson County Was Established in 1848 and Named for a Colorful Judge The Texas Legislature created Williamson County on March 13, 1848, naming it for Robert M. Williamson, a judge, soldier, and early Texas leader.
- Practical Cars & Driving Williamson County Title Transfers Need the Tax Office Paper Trail Williamson County's title page and TxDMV both point buyers and sellers to signed title paperwork, Form 130-U, insurance, and timely transfer.
- Practical Rules & Licenses Check Williamson's burn-ban page before you burn Williamson County posts burn-ban status for unincorporated areas, and the answer can change with drought and wind.
- Practical Rules & Licenses Fireworks Sales and Displays Go Through the Fire Marshal Williamson County Fire Marshal permit pages cover fireworks stands, stand renewals, and fireworks display applications.
- Practical Rules & Licenses Septic Systems in Williamson County Start With the OSSF Office Williamson County regulates on-site sewage facilities for most of the county outside the City of Austin.
- Practical Money & Taxes Two Offices Handle Your Property Tax in Williamson County The appraisal district sets your property's value and the tax office collects the money, and they are separate offices.
- Practical Home & Property You Need a Permit to Build Near a Floodplain in Unincorporated Areas Building or improving property near a 100-year floodplain in unincorporated Williamson County requires a county permit.
- Practical Cars & Driving Williamson County Vehicles Still Need an Emissions Test Safety inspections are no longer required to renew registration in Texas, but Williamson County vehicles still require a passing emissions inspection.
- Practical Money & Taxes Williamson County Businesses Should Check BPP Rendition With WCAD Texas business owners must render taxable personal property, and WCAD maintains business personal property accounts in Williamson County.
- Practical Money & Taxes Williamson County Offers Monthly Property Tax Prepayments Taxpayers can enroll in a Williamson County scheduled prepayment plan for monthly deposits toward future property taxes.
- Practical Money & Taxes Williamson County Property Taxes Can Be Paid Online, by Mail, or In Person The Williamson County Tax Office lists online, mail, in-person, phone, drop box, bank bill pay, prepayment, and partial payment options.
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