Hartline ZIP Codes — Grant County, WA

There is one unique ZIP code in Hartline, Washington and it is 99135. Area code: 509.

ZIP codes

173.58

sq mi land

0.02

sq mi water

509

area code

Hartline, WA ZIP code map

About Hartline, WA

Hartline is a small city located in Grant County, Washington. Known for its rural charm, Hartline offers a tranquil setting away from the hustle and bustle of larger urban areas. The town serves as a quiet retreat for those interested in the natural beauty and agricultural lifestyle of central Washington.

Location & geography

Hartline is situated in the central part of Washington State, approximately 32 miles east of the larger city of Quincy. It is surrounded by a diverse landscape, characterized by rolling hills and expansive agricultural fields. The total land area of Hartline is 173.58 square miles, with a negligible water area of 0.02 square miles.

Community & economy

The community of Hartline is characterized by its tight-knit atmosphere and friendly residents, reflecting the simplicity and rugged beauty of rural life. Agriculture plays a significant role in the local economy, providing livelihoods for many families in the area. Daily life in Hartline revolves around community events, farming activities, and enjoying the surrounding natural landscapes.

Transportation

Hartline is accessible via State Route 2, which connects it to nearby towns and cities. The nearest major airport is Grant County International Airport, located approximately 30 miles away in Moses Lake, providing regional air travel options. Public transportation is limited, making personal vehicles the primary mode of transit in the area.

History

Hartline was established in the early 20th century, primarily as an agricultural community that supported the surrounding farming activities. Over the years, it has remained a small but resilient town with a focus on agriculture and community-driven initiatives. Notable events in the town's history often center around agricultural fairs and community gatherings that celebrate its rural heritage.

Did you know?

One surprising fact about Hartline is that it is home to an annual community harvest festival that draws visitors from surrounding areas. This small town also boasts picturesque views of the Columbia Plateau, making it a hidden gem for nature enthusiasts.

ZIP codes for Hartline, WA (1)

ZIP code	City	County	Map
99135	Hartline	Grant	View map

Demographics & statistics

452

Population

34.9

Median age

$84,896

Median household income

$31,851

Per capita income

$186,100

Median home value

$1,014

Median monthly rent

90.7%

Home ownership

1.1%

Poverty rate

0.0%

Unemployment

193

Housing units

21.6%

Bachelor's or higher

Age distribution

Male Female

Under 5

5–9

10–14

15–19

20–24

25–34

35–44

45–54

55–59

60–64

65–74

75–84

85+

← Male

Female →

Age summary

Group	Count	%
Under 18	128	28.3%
18 and over	324	71.7%
65 and over	102	22.6%
Median age	34.9 years

Race & ethnicity

White 94.2%

Two or more races 3.7%

Hispanic or Latino 2.2%

Group	Count	%
White	435	94.2%
Two or more races	17	3.7%
Hispanic or Latino	10	2.2%

Household income

Under $10k 1.1%

$15k–$25k 4.4%

$25k–$35k 6.6%

$35k–$50k 24.0%

$50k–$75k 6.0%

$75k–$100k 32.8%

$100k–$150k 21.3%

$150k–$200k 2.7%

$200k+ 1.1%

Range	% of households
Under $10k	1.1%
$15k–$25k	4.4%
$25k–$35k	6.6%
$35k–$50k	24.0%
$50k–$75k	6.0%
$75k–$100k	32.8%
$100k–$150k	21.3%
$150k–$200k	2.7%
$200k+	1.1%
Median income	$84,896

Housing

Home values

Under $50k 0.6%

$50k–$100k 8.4%

$100k–$150k 15.1%

$150k–$200k 28.9%

$200k–$300k 8.4%

$300k–$500k 5.4%

$500k–$1M 33.1%

Housing overview

Metric	Value
Median home value	$186,100
Median rent / month	$1,014
Owner occupied	90.7%
Renter occupied	9.3%
Vacant	12.9%
Single-family detached	97.1%
Large apartment buildings	0.0%
Mobile homes	1.9%
Median rooms	6.3
Avg household size (owned)	2.55

Year built

Era	%
2020 or later	0.0%
2010–2019	0.0%
2000–2009	6.7%
1990–1999	0.0%
1980–1989	15.7%
1970–1979	5.2%
1960–1969	5.2%
1950–1959	1.0%
1940–1949	8.6%
1939 or earlier	57.6%

Bedrooms

Size	% of units
No bedroom (studio)	0.0%
1 bedroom	12.4%
2 bedrooms	19.5%
3 bedrooms	22.9%
4 bedrooms	23.3%
5+ bedrooms	21.9%

Vehicles per household

Vehicles	% of households
No vehicle	3.3%
1 vehicle	19.1%
2 vehicles	27.3%
3 or more	50.3%

Heating fuel

Fuel type	%
Electricity	84.7%
Propane / LP gas	3.8%
Fuel oil	2.2%
Wood	8.2%
No fuel used	1.1%

Households & families

Household type	Count	%
Married-couple family	73	39.9%
Cohabiting couple	5	2.7%
Male householder, no spouse	79	43.2%
Female householder, no spouse	26	14.2%
Households with children under 18	65	35.5%
Households with seniors (65+)	79	43.2%
Average household size	2.47

Marital status

Status	Male	Female
Never married	14.4%	22.9%
Married	42.8%	51.6%
Separated	1.1%	3.3%
Widowed	18.3%	11.1%
Divorced	23.3%	11.1%

Education

Less than 9th grade 2.5%

Some HS, no diploma 5.0%

HS graduate 26.6%

Some college, no degree 29.1%

Associate's degree 15.2%

Bachelor's degree 11.3%

Graduate / professional 10.3%

Metric	%
HS diploma or higher	92.6%
Bachelor's or higher	21.6%

School enrollment (ages 3–17)

Type	Count	%
Nursery / preschool	6	4.3%
Kindergarten	14	10.1%
Elementary school	93	66.9%
High school	23	16.5%
College / grad school	3	2.2%

Employment

Industry of employment

Agriculture & mining 36.0%

Education & healthcare 20.7%

Arts, food & hospitality 16.7%

Construction 10.3%

Professional & management 4.9%

Retail trade 4.4%

Finance & real estate 2.0%

Wholesale trade 1.5%

Public administration 1.5%

Transportation & utilities 1.0%

Other services 1.0%

Occupation

Category	%
Management, business & arts	36.9%
Service	7.4%
Sales & office	19.2%
Natural resources & construction	28.1%
Production & transportation	8.4%

Employment type

Type	%
Private sector	69.5%
Government	27.6%
Self-employed	2.0%
Unpaid family workers	1.0%

Commute

Method	%
Drive alone	59.6%
Carpool	8.9%
Public transit	1.0%
Walk	3.9%
Other means	0.0%
Avg commute (minutes)	30.7

Poverty

All people 1.1%

Under 18 years 0.0%

18 and over 1.5%

Married-couple families 0.0%

Female-led households 0.0%

Income support

Source	% of households
Social Security	45.4%
Retirement income	38.8%
Supplemental Security	0.0%
Cash public assistance	1.1%
Food stamps / SNAP	0.5%

Health indicators

Condition	%
High blood pressure	38.8%
High cholesterol	40.3%
Heart disease	8.4%
Stroke	4.0%
Asthma	11.0%
Arthritis	29.0%
Kidney disease	3.7%
Pulmonary disease	8.5%
Cancer	8.1%

Behavior / access	%
Binge drinking	15.2%
No physical activity	21.9%
Less than 7 hrs sleep	29.4%
Fair or poor health	16.8%
Poor mental health	15.0%
Poor physical health	13.3%
No health insurance	11.7%
Visited doctor (checkup)	71.8%
Visited dentist	65.3%
Cholesterol screening	88.8%
Teeth loss	13.9%

Veterans & disability

Veterans	Count	%
Civilian veterans	26	8.0%

Disability	%
Any disability	10.8%
Under 18	3.1%
18–64 years	7.2%
65 and over	28.4%

Health insurance coverage

Type	%
Private insurance	76.8%
Public insurance	48.9%
Uninsured under 19	8.6%

Language & origin

Language spoken at home (age 5+)

Language	Count	%
English only	443	98.0%
Spanish	0	0.0%
Other Indo-European	0	0.0%
Asian & Pacific Islander	0	0.0%
Other languages	0	0.0%

Place of birth & citizenship

Origin	Count	%
Native born (US)	452	100.0%
Born in same state	450	99.6%
Born in different state	371	82.1%
Foreign born	2	0.4%
Naturalized citizen	0	0.0%
Not a US citizen	0	0.0%

Ancestry

Ancestry	Count	%
Polish	105	23.2%
French	41	9.1%
Arab	33	7.3%
Italian	29	6.4%

Ancestry	Count	%
English	2	0.4%
Dutch	2	0.4%
German	1	0.2%

Technology access

Metric	% of households
Computer access	40.5%
Internet access	94.0%

Source: U.S. Census Bureau, American Community Survey 2025 estimates.

Frequently asked questions

What ZIP codes does Hartline, WA have?

Hartline, WA has one ZIP code: 99135. Each ZIP code serves a distinct delivery area within the city and surrounding region.