US Census Data

Grant County vs Island County

A side-by-side comparison of Grant County and Island County: population, income, housing, and more.

Grant County and Island County are counties in Washington. This page compares them across population, income, housing, education, commuting, and how each has changed since 2019.

Grant County has the higher population (100,428 vs 86,747 in Island County). Island County has the higher median household income ($88,358 vs $71,115 in Grant County). Island County has the higher median home value ($535,300 vs $275,700 in Grant County).

Population, income & housing

Grant CountyIsland County
Population100,42886,747
Median age33.5 yrs44.5 yrs
Median household income$71,115$88,358
Median home value$275,700$535,300
Median gross rent$1,059$1,631
Housing units39,49642,398
Homeownership rate65.6%74.6%
Bachelor's degree or higher18.2%35.7%
Unemployment rate6.3%4.7%

Trends (ACS 5-year, 2019–2023)

Grant CountyIsland County
Population95,502 → 100,428 (+5.2%)82,866 → 86,747 (+4.7%)
Median household income$55,556 → $71,115 (+28.0%)$68,604 → $88,358 (+28.8%)
Median home value$177,500 → $275,700 (+55.3%)$358,800 → $535,300 (+49.2%)
Median gross rent$785 → $1,059 (+34.9%)$1,218 → $1,631 (+33.9%)

Grant County

Population
95,502100,428
Median household income
$55,556$71,115
Median home value
$177,500$275,700
Median gross rent
$785$1,059

Island County

Population
82,86686,747
Median household income
$68,604$88,358
Median home value
$358,800$535,300
Median gross rent
$1,218$1,631

Age & race/ethnicity

Age distribution (share)

Grant CountyIsland County
Under 57.2%4.9%
5 to 1721.5%12.7%
18 to 249.5%8.6%
25 to 3413.7%12.8%
35 to 4412.1%11.7%
45 to 5410.8%9.6%
55 to 6410.9%13.7%
65 to 748.7%15.7%
75 and over5.7%10.4%

Race & ethnicity (share)

Grant CountyIsland County
White (non-Hispanic)50.0%76.6%
Black or African American1.2%2.6%
American Indian & Alaska Native0.7%0.7%
Asian0.9%4.8%
Native Hawaiian & Pacific Islander0.0%0.4%
Some other race0.2%0.2%
Two or more races3.8%6.2%
Hispanic or Latino43.3%8.5%

Educational attainment (age 25+)

Share of adults 25+

Grant CountyIsland County
No high school diploma18.6%4.1%
High school graduate29.0%21.9%
Some college or associate's34.2%38.3%
Bachelor's degree12.9%21.5%
Graduate or professional degree5.3%14.3%

Commute to work

How workers get to work (share)

Grant CountyIsland County
Drove alone73.6%69.7%
Carpooled12.6%9.9%
Public transit1.5%1.9%
Walked1.8%3.3%
Bicycle0.2%0.4%
Worked from home9.2%13.8%
Other means1.1%1.0%

Housing

Units in structure (share)

Grant CountyIsland County
1-unit, detached58.7%78.5%
1-unit, attached3.0%3.1%
2 to 4 units5.6%5.5%
5 to 19 units3.9%4.4%
20 or more units5.1%1.9%
Mobile home & other23.7%6.7%

Poverty & households

Grant CountyIsland County
Poverty rate15.0%7.0%
Average household size2.832.37
Mean commute (minutes)2027
Median year structure built19871990

Full profiles

2

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