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Williamson County, TX Animal Ordinances: Chickens & Livestock (2026)

Few Restrictions
Compiled from the official code textEditor Martyn O'NeillLast verified September 2026

Key Facts

Hen Limit
None unincorporated
Range
Closed, must contain
Highway Roaming
Class C misdemeanor
HOAs
Often ban livestock

Summary

Unincorporated Williamson County sets no hen limit and allows backyard chickens and livestock. The county has adopted a stock law, so owners must fence livestock in; letting animals roam a state or U.S. highway is an offense under Texas law.

City-specific rules exist: Round Rock, and Cedar Park have their own chickens & livestock rules that differ from Williamson County's county-level regulations. If you live in one of those cities, check the city-specific page instead.

A person who owns or has responsibility for the control of a horse, mule, donkey, cow, bull, steer, hog, sheep, or goat may not knowingly permit the animal to traverse or roam at large, unattended, on the right-of-way of a highway.

Full Breakdown

Williamson County has no zoning and no cap on chickens or other livestock in unincorporated areas, and roosters are allowed. The binding rule is containment. The county sits under an adopted stock law (closed range) for cattle, horses, sheep, and goats, making each owner responsible for fencing their animals in. Agriculture Code Section 143.102 separately makes it an offense to knowingly permit a horse, cow, hog, sheep, or goat to roam at large on a U.S. or state highway right-of-way. HOA deed restrictions in subdivisions frequently ban livestock and limit or prohibit poultry.

Violations & Fines

Permitting covered livestock to roam a state or U.S. highway is a Class C misdemeanor and can make the owner liable for collision damages. Loose animals are impounded by animal control; HOAs enforce their own poultry and livestock bans.

Frequently Asked Questions

Can I keep chickens in unincorporated Williamson County?
Yes, with no county limit on numbers and roosters allowed. HOA subdivisions often restrict or ban poultry, so check your deed restrictions first.
Am I liable if my cattle get onto the road?
Yes. The county's stock law requires you to fence livestock in, and permitting them onto a state or U.S. highway is an offense plus civil liability.

Sources & Official References

Other rules in Williamson County

All Williamson County rules

How Williamson County compares: Best Cities for Backyard Chickens·Texas rules heatmap·Compare Williamson County to another location·View the Texas animal ordinances overview

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