Williamson County, TN Average Home Price (2026)
The average home price in Williamson County, Tennessee is about $921,500 (the 2026 median across 10 ZIP codes, at ~$377/sq ft) — 245% more expensive than the Tennessee median and 219% more expensive than the typical U.S. home.
How Williamson County compares
Williamson County is relatively expensive for housing nationally: its typical home costs $921,500 against $267,000 for Tennessee and $289,000 for the U.S. Within the county, ZIP-level values run from about $540,000 to $1,295,000.
| Area | Typical value | $ / sq ft |
|---|---|---|
| Williamson County | $921,500 | $377 |
| Tennessee | $267,000 | $213 |
| United States | $289,000 | $193 |
Cities in Williamson County
Cities with their own home-value page, largest first:
Williamson County home prices by ZIP code
The 10 most valuable ZIP codes in Williamson County (of 10 with data):
| ZIP code | Typical value | $ / sq ft | vs county |
|---|---|---|---|
| 37046 College Grove | $1,295,000 | $580 | +41% |
| 37014 Arrington | $1,278,000 | $411 | +39% |
| 37027 Brentwood | $1,220,000 | $393 | +32% |
| 37069 Franklin | $999,000 | $360 | +8% |
| 37067 Franklin | $942,000 | $325 | +2% |
| 37064 Franklin | $901,000 | $404 | -2% |
| 37135 Nolensville | $816,000 | $276 | -11% |
| 37179 Thompsons Station | $719,000 | $323 | -22% |
| 38476 Primm Springs | $580,000 | $522 | -37% |
| 37062 Fairview | $540,000 | $266 | -41% |
Home value appreciation in Williamson County
Home prices in Williamson County have risen about 128% over the last 10 years (≈8.6% a year) and +198.0% over 20 years, according to the FHFA house price index through 2025. The most recent year came in at +2.8% — still rising. A home worth $921,500 today was worth roughly $403,636 ten years ago.
See where that trend takes a specific home with the home appreciation calculator — statewide, Tennessee is +113.5% over the same 10 years. Past appreciation is a track record, not a forecast; local prices can fall.
Calculators for Williamson County
Run the numbers for Williamson County with the local rates already filled in — change any input to test your own situation.
Salary needed to buy a home in Williamson County
To buy the typical $921,500 home in Williamson County with 20% down, you need a household income of roughly $251,000 a year (about $5,850 a month for the mortgage, taxes, and insurance). With 10% down the bar rises to about $298,000, because the loan is bigger and mortgage insurance kicks in.
| Down payment | Cash down | Monthly payment | Income needed |
|---|---|---|---|
| 5% (+PMI) | $46,100 | $7,270/mo | $312,000/yr |
| 10% (+PMI) | $92,200 | $6,950/mo | $298,000/yr |
| 20% | $184,300 | $5,850/mo | $251,000/yr |
Assumes a 30-year fixed mortgage at 6.5%, property tax at 1.1% and insurance at 0.45% of value per year, PMI of 0.75% on loans with less than 20% down, and the standard 28% housing-to-income rule. Your rate, taxes, and HOA will move these — run your own numbers in the mortgage calculator.
What your budget buys in Williamson County
At about $377 per square foot, here is roughly how much home different budgets get you in Williamson County:
| Budget | Approx. size | What that looks like locally |
|---|---|---|
| $500k | 1330 sq ft | below the local median — condos, smaller or older homes |
| $600k | 1590 sq ft | below the local median — condos, smaller or older homes |
| $750k | 1990 sq ft | around the typical home here |
| $1.00M | 2650 sq ft | around the typical home here |
| $1.50M | 3980 sq ft | above the median — larger homes or the pricier ZIPs |
Wondering where that budget goes further? The relocation calculator ranks hundreds of U.S. cities by what the same money buys — it opens filtered to Tennessee.
Estimate a specific home in Williamson County
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Williamson County home prices: frequently asked
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Browse all Tennessee cities and counties, or look up price per square foot by ZIP code nationwide.
Directional estimates from public market data (Realtor.com & Zillow research; FHFA house price index; Census ZIP-to-county relationships), not appraisals.