Does ARVCast cover Johnson City, TN?

Yes — Johnson City is covered as part of Washington County, TN.

How accurate are ARV estimates in Washington County?

In the latest backtest (2026-08-11), the median absolute error was 13.6% across 348 held-out arms-length sales, with 62.9% of estimates within ±20% of the actual sale price.

Can I get this data via API?

Yes — the same ARV, comps, and parcel data is available through the ARVCast API on RapidAPI. See the API docs.

Johnson City, TN — ARV estimates & comps

Johnson City is part of ARVCast's Washington County, TN coverage: instant after-repair values, arms-length comps, and parcel-level property data.

How accurate is ARVCast in Washington County?

13.6%

Median error (MdAPE)

62.9%

Within ±20% of sale price

348

Sales backtested

Backtest of 2026-08-11 against held-out arms-length sales.

Run an ARV lookup in Johnson City

Enter an address to get an instant after-repair value with comps.

Frequently asked questions

Does ARVCast cover Johnson City, TN?: Yes — Johnson City is covered as part of Washington County, TN.
How accurate are ARV estimates in Washington County?: In the latest backtest (2026-08-11), the median absolute error was 13.6% across 348 held-out arms-length sales, with 62.9% of estimates within ±20% of the actual sale price.
Can I get this data via API?: Yes — the same ARV, comps, and parcel data is available through the ARVCast API on RapidAPI. See the API docs.

Johnson City is part of Washington County, TN coverage.

Nearby in Washington County:Jonesborough

Also covered:Shelby County, TN Fayette County, TN Tipton County, TN Haywood County, TN Madison County, TN Gibson County, TN Henderson County, TN Weakley County, TN Sumner County, TN Wilson County, TN Maury County, TN Davidson County, TN Rutherford County, TN Robertson County, TN Cheatham County, TN Dickson County, TN Marshall County, TN Rhea County, TN Bedford County, TN Blount County, TN Union County, TN White County, TN Coffee County, TN Roane County, TN Anderson County, TN Bradley County, TN Putnam County, TN Lincoln County, TN Loudon County, TN Jefferson County, TN Hamblen County, TN Bledsoe County, TN Moore County, TN DeKalb County, TN Franklin County, TN Claiborne County, TN Warren County, TN Sevier County, TN Trousdale County, TN Giles County, TN Cumberland County, TN Macon County, TN Sullivan County, TN Cannon County, TN Carter County, TN Hawkins County, TN McMinn County, TN Overton County, TN Monroe County, TN Smith County, TN Greene County, TN Campbell County, TN Lewis County, TN

Need this programmatically? ARVCast API docs.