PlainZIP

Hartline, WA · standard

ZIP Code 99135

Grant County, Washington - Census ACS demographics, housing tenure, and business patterns, benchmarked against every US ZIP.

255
1/sq mi
$80,469
Median income
23.0%
Bachelor's or higher

The verdict

Hartline pairs an above-median household income, in a rural, homeowner-dominated area.

Top 37%
household income, US ZIPs
1
people per sq mi
93%
owner-occupied homes

Source: U.S. Census Bureau ACS 5-Year Estimates (2019–2023). Percentiles rank ZIP 99135 against every reporting US ZIP.

ZIP code 99135 is a sparsely populated ZIP (a standard USPS delivery area) in Hartline, Grant County, Washington, home to just 255 residents across 425.0 square miles, a density of 1 people per square mile, in the Los Angeles time zone.

ZIP 99135 lands in the middle-income range, with a median household income of $80,469 (11% below the Washington average), while per-capita income is $33,187. Poverty here runs at 3.5%, with unemployment measured at 0.6%. The typical home here is valued at -; renters pay a median of $393 monthly, and 92.8% of units are owner-occupied.

Educational attainment sits below the national norm: 23.0% of adults hold a bachelor's degree or higher, the median age is 35.5, and the average commute is -. Use the benchmarks above to see where 99135 sits relative to Washington and the national baseline rather than viewing the numbers in isolation.

Every figure on this page is sourced from the U.S. Census Bureau American Community Survey 5-Year Estimates (including median rent) and the FHFA House Price Index, no estimates, no proprietary scoring. Verify with Census →

Source: U.S. Census Bureau, American Community Survey 5-Year Estimates + ZIP Code Business Patterns + FHFA HPI ACS demographics and median rent, ZBP business establishments, FHFA HPI for ZIP 99135, Hartline, WA · 2023 Census ACS 5-Year Estimates use a rolling 60-month sample for stable small-geography estimates; ZBP updated annually; FHFA HPI updated quarterly/annually.

Quick Facts

255

Population

425.0

Area (sq mi)

1

People / sq mi

Los Angeles

Time Zone

standard

ZIP Type

Neighborhood Scorecard
Get an A-F grade across income, safety, housing, rent, education, commute, and childcare for this ZIP code.
View Scorecard →

Who lives in ZIP 99135?

35.5

Median Age

57.2%

Male

42.8%

Female

0.0%

Foreign-Born

White 96.2%
African American 0.0%
Asian 0.0%
American Indian or Alaska Native 0.0%
Native Hawaiian or Pacific Islander 0.0%
Two or More Ethnicities 3.8%
Hispanic or Latino 0.5%

Hispanic or Latino is an ethnicity category from the Census Bureau and may overlap with other categories above.

Source: U.S. Census Bureau, ACS 5-Year Estimates (2023)

How much do residents earn?

$80,469

Median Household Income

-11% vs state

$33,187

Per Capita Income

3.5%

Poverty Rate

0.6%

Unemployment Rate

How ZIP 99135 ranks nationally

Hartline, WA household income vs. every US ZIP code

Median household income, the full national distribution, with this ZIP marked

$80,469 Top 37% higher than 63% of 30,318 US ZIPs

$0–$20,000: 118 US ZIPs (0%). Below this entry. $20,000–$40,000: 1,573 US ZIPs (5%). Below this entry. $40,000–$60,000: 7,092 US ZIPs (23%). Below this entry. $60,000–$80,000: 9,980 US ZIPs (33%). Below this entry. $80,000–$100,000: 5,778 US ZIPs (19%). This entry sits in this band. $100,000–$120,000: 2,855 US ZIPs (9%). Above this entry. $120,000–$140,000: 1,362 US ZIPs (4%). Above this entry. $140,000–$160,000: 686 US ZIPs (2%). Above this entry. $160,000–$180,000: 364 US ZIPs (1%). Above this entry. $180,000–$200,000: 186 US ZIPs (1%). Above this entry. $200,000–$220,000: 324 US ZIPs (1%). Above this entry. This ZIP $0 $200K+ every reporting US ZIP, bucketed by value

Each bar is a $20K-wide band; taller bars hold more US ZIPs. The dashed line + filled bar mark this entry. Hover or tap any bar for its full count, share, and where it sits relative to this entry.

Source U.S. Census Bureau, ACS 5-Year Estimates · 2019–2023

Source: U.S. Census Bureau, ACS 5-Year Estimates (2023)

What is the education profile here?

High School Graduate or Higher 53.7%
Bachelor's Degree or Higher 23.0%

Source: U.S. Census Bureau, ACS 5-Year Estimates (2023)

What does housing look like?

195

Total Housing Units

167

Occupied Units

28

Vacant Units

2.37

Avg Household Size

Occupancy Type

Owner 92.8%
Renter 7.2%

$393

Median Rent

1938

Median Year Built

Source: U.S. Census Bureau, ACS 5-Year Estimates (2023)

What businesses operate in this ZIP?

Census Bureau data shows 4 business establishments in ZIP 99135, employing approximately 24 people with a combined annual payroll of $1,172,000.

4

Businesses

24

Employees

$1.2M

Annual Payroll

1

Industry Sectors

Industry Establishments % of Total
Transportation and warehousing 3 75.0%

Source: U.S. Census Bureau, ZIP Code Business Patterns (ZBP), 2023. Employment figures may include noise for disclosure avoidance.

More ZIP Codes in Grant County

98837 standard
Moses Lake, WA
Pop: 39,722
98848 standard
Quincy, WA
Pop: 11,518
98823 standard
Ephrata, WA
Pop: 11,055
99349 standard
Mattawa, WA
Pop: 8,483
99357 standard
Royal City, WA
Pop: 4,323
98857 standard
Warden, WA
Pop: 4,082

Related Areas

Grant County Hartline, WA Washington

Frequently Asked Questions

What county is ZIP code 99135 in? ▼
ZIP code 99135 (Hartline) is located in Grant County, Washington. Grant County contains multiple ZIP codes, see the full list at /counties/grant-wa.
What is the population of ZIP code 99135? ▼
ZIP code 99135 in Hartline, WA has a population of 255 according to the Census Bureau ACS 2023 estimates.
What is the median household income in ZIP 99135? ▼
The median household income in ZIP 99135 is $80,469, which is 5% above the national average of $76,288.
What is the demographic makeup of ZIP 99135? ▼
The largest racial group in ZIP 99135 is White at 96.2%. Hispanic or Latino residents make up 0.5% of the population.
How many businesses are in ZIP code 99135? ▼
ZIP code 99135 has 4 business establishments employing approximately 24 people, according to Census Bureau ZIP Code Business Patterns (ZBP) 2023 data.
What is the education level in ZIP code 99135? ▼
In ZIP code 99135, 53.7% of residents aged 25+ have a high school diploma or higher, and 23.0% hold a bachelor's degree or higher. These figures come from the Census Bureau ACS 5-Year Estimates (2023).
What percentage of residents own vs. rent in ZIP 99135? ▼
In ZIP code 99135, approximately 92.8% of occupied housing units are owner-occupied and 7.2% are renter-occupied, based on Census ACS 2023 data.
What is the poverty rate in ZIP code 99135? ▼
The poverty rate in ZIP code 99135 is 3.5% according to Census Bureau ACS 2023 estimates. This measures the percentage of the population living below the federal poverty threshold.

Read our methodology to see how this data is sourced, computed, and verified.