Best ZIP Codes for Cash Flow in Kennewick-Richland, WA (2026)

Ranked by cap rate — the annual return on the purchase price before financing. ZIPs that also clear the 1% rule are marked.

# ZIP City Home value Rent Cap rate 5-yr growth
1 99337 Kennewick, WA $437,001 $1,974 3.52% 3.5%
2 99353 West Richland, WA $498,905 $2,089 3.27% 3.5%
3 99336 Kennewick, WA $374,111 $1,542 3.22% 3.9%
4 99301 Pasco, WA $421,453 $1,656 3.06% 3.5%
5 99326 Connell, WA $328,993 $1,287 3.05% 4.1%
6 99354 Richland, WA $422,310 $1,653 3.05% 3.9%
7 99352 Richland, WA $503,290 $1,844 2.86% 3.5%
8 99350 Prosser, WA $426,178 $1,470 2.69% 3.0%
9 99338 Kennewick, WA $561,505 $1,874 2.60% 3.2%
10 99320 Benton City, WA $437,245 $1,332 2.38% 3.9%
11 99343 Mesa, WA $571,670 $1,224 1.67% 2.7%
12 99330 Eltopia, WA $716,149 $1,296 1.41% 4.3%

Ranked from Repit’s own ZIP-level data — Zillow home values and rents, HUD fair-market rents where Zillow has no coverage, and U.S. Census vacancy. Cap rate is gross: annual rent over purchase price, before financing and expenses. Every ZIP above links to its full free page. How we calculate this →