Hartline, WA ZIP code
The ZIP code for Hartline, Washington is 99135. It is in Grant County.
- Population in these ZIPs
- 395
- Avg. median income
- $80,500population-weighted
- Typical home value
- $216,800population-weighted
- Metro area
- Moses Lake, WA
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Hartline, WA ZIP code list
| ZIP code | Population | Median income | Typical home value |
|---|---|---|---|
| 99135 | 395 | $80,469 | $216,800 |
Population and median household income: ACS 2020–2024 5-year estimates. Typical home value: Zillow Home Value Index (September 2026) where available, otherwise the ACS median owner-reported value. "PO Box" marks ZIP codes with no delivery area of their own. Methodology
Cities near Hartline
- Almira 9 mi
- Coulee City 13 mi
- Wilson Creek 14 mi
- Electric City 16 mi
- Stratford 16 mi
- Wilbur 18 mi
- Marlin 23 mi
- Soap Lake 23 mi
- Grand Coulee 24 mi
- Creston 24 mi
- Elmer City 24 mi
- Coulee Dam 25 mi
Frequently asked questions
What is the ZIP code for Hartline, WA?
The ZIP code for Hartline, WA is 99135.
What county is Hartline, Washington in?
Hartline ZIP codes are in Grant County.