Arco is home to 850 people in Idaho. The poverty rate is 31.9%, above the 12.5% national rate. Households here earn about 52% less than in Idaho as a whole. About 24% of adults have finished a four-year degree. 1% of people here were born outside the United States. Median rent is $564 a month.
At a glance
Lower income
median household income $37,644, below the US median
US median: $82,259
Younger
median age 34.6
US median: 38.9
Less educated
24% hold a bachelor's degree
US average: 36%
Less affordable
home values up 126%, inflation adjusted
US median home: $376,019
Unique to this place
What stands out about Arco
What changed most since 1990
Poverty rate12.5% → 31.9%(+19.3 pts)US over the same years: −0.8 pts
Median age37.0 → 34.6(−2.4 years)US over the same years: +6.0 years
Homes owned by their occupants70.2% → 60.2%(−9.9 pts)US over the same years: +0.9 pts
Shares are "alone or in combination": a person with both Medicare and Medicaid counts in each, so categories overlap and do not sum to 100%.
Section 09 · Service history
Veterans
Veterans by period of service, 2024
Gulf War (2001 or later)52.3%(34)
US avg: 26.4%
Gulf War (1990s)10.8%(7)
US avg: 24.3%
Vietnam era10.8%(7)
US avg: 33.1%
Korean War1.5%(1)
US avg: 4.5%
World War II0%(0)
US avg: 1%
Share of the 65 veterans here. A veteran who served across eras counts in each, so shares can total more than 100%. Peacetime-only service is included in the total but not shown as an era.
BAR + DOT: THIS PLACE · TICK: US AVERAGE
Over time
Arco, decade by decade
Arco population, inflation-adjusted income and home value, education, and diversity by year
Year
Population
Median household income
Median home value
Bachelor's degree+
Diversity score
1990
1,027
$53,253
$86,882
18.2%
17.8
2000
1,026
$50,994
$84,889
12.7%
14.7
2010
995
$47,353
$112,209
15.5%
13.5
2020
879
$26,261
$100,963
14.2%
25.2
2024
850
$37,644
$192,000
23.9%
34.1
Census years come from the decennial census and the latest year from the American Community Survey, so part of any change between those two rows can reflect the different surveys. Dollar figures are adjusted for inflation to 2024 dollars; a figure ending in "+" was at the Census Bureau's reporting cap that year. The diversity score runs from 0 to 100; see how it's calculated.
