Williamson County is one of the fastest-growing counties in the country, home to Leander, Cedar Park, Round Rock, Georgetown, Liberty Hill, and more. Families come for the well-regarded school districts, newer neighborhoods, and lower density than Austin, while staying close to the region's biggest employers. Major employers include Dell Technologies in Round Rock, and Samsung's semiconductor plant in Taylor is bringing new jobs to the east side of the county. Georgetown is the county seat.

Recent home sale prices by ZIP code

• 78641 (Leander): lower end about $315K, upper end about $1.08M, median $470K

• 78613 (Cedar Park): lower end about $330K, upper end about $980K, median $510K

• 78642 (Liberty Hill): lower end about $320K, upper end about $1.01M, median $500K

• 78664 (Round Rock): lower end about $255K, upper end about $685K, median $350K

• 78665 (Round Rock): lower end about $315K, upper end about $675K, median $410K

• 78681 (Round Rock): lower end about $335K, upper end about $895K, median $515K

• 78626 (Georgetown): lower end about $285K, upper end about $715K, median $385K

• 78628 (Georgetown): lower end about $340K, upper end about $1.04M, median $545K

• 78633 (Georgetown): lower end about $300K, upper end about $910K, median $450K

Based on 4,290 single-family home sales from April to October 2026. "Lower end" is the average of the lowest-priced 20% of sales and "upper end" is the average of the highest-priced 20%. Source: Redfin, based on MLS data. Updated October 2026.