The map above shows Delaware and Idaho side by side at exactly the same scale, using equal-area projections, so their true relative sizes are preserved.
Delaware vs Idaho Geography
Land area
- Delaware has a land area of 1,949 square miles (5,047 km²), while Idaho has 82,645 square miles (214,051 km²).
- Idaho's land area is 42.4 times larger than Delaware's.
Total area
- Delaware: 2,489 square miles (6,446 km²) vs Idaho: 83,569 square miles (216,441 km²), including inland and coastal water.
- Idaho's total area is 33.6 times larger than Delaware's.
Length
- Delaware is 98 miles (158 km) long from north to south; Idaho is 483 miles (778 km).
- Idaho's north-south length is 4.9 times (393%) longer than Delaware's.
Width
- Delaware spans 96 miles (155 km) east to west; Idaho spans 352 miles (566 km).
- Idaho's east-west width is 3.7 times (267%) wider than Delaware's.
Highest point
- Delaware's highest point is Ebright Azimuth at 450 feet (137 m); Idaho's is Borah Peak at 12,631 feet (3,850 m).
- Borah Peak is 12,181 feet higher than Ebright Azimuth.
Lowest point
- Delaware's lowest point is Atlantic Ocean at 0 feet; Idaho's is Snake River at 718 feet.
- Delaware's lowest point is 718 feet lower.
Delaware vs Idaho Population and History
Population
- Delaware has a population of 1,051,917 (2024), while Idaho has 2,001,619 (2024).
- Idaho's population is 1.9 times (90%) larger than Delaware's.
Population density
- Delaware: 539.9 people per square mile vs Idaho: 24.2.
- Delaware's population density is 22.3 times higher than Idaho's.
Biggest city
- Delaware's biggest city is Wilmington with 73,176 people; Idaho's is Boise with 237,963.
- Boise's population is 3.3 times (225%) larger than Wilmington's.
Largest metro area
- Delaware's largest metropolitan area is Philadelphia-Camden-Wilmington, PA-NJ-DE-MD metro area (6,330,422 people) vs Idaho's Boise City, ID metro area (845,877).
- Philadelphia-Camden-Wilmington, PA-NJ-DE-MD metro area's population is 7.5 times (648%) larger than Boise City, ID metro area's.
History
- Delaware: Admitted to the Union on December 7, 1787, as the 1st state.
- Idaho: Admitted to the Union on July 3, 1890, as the 43rd state.
- In its current form, Delaware is the older of the two by 103 years.
Delaware vs Idaho Economy
GDP
- Delaware's GDP is $111.0 billion (2024) vs Idaho's $129.0 billion.
- Idaho's economic output is 1.2 times (16%) larger than Delaware's.
GDP per capita
- Delaware: $105,495 per person vs Idaho: $64,457.
- Delaware's GDP per capita is 1.6 times (64%) higher than Idaho's.
Average income
- Delaware: $68,061 vs Idaho: $62,323 average income per person (per capita personal income).
- Delaware's average income is 1.1 times (9%) higher than Idaho's.
Delaware vs Idaho Counties
Number of counties
- Delaware has 3 counties, while Idaho has 44.
- Idaho's county count is 14.7 times higher than Delaware's.
Biggest county by area
- Delaware's largest county is Sussex County at 936 square miles; Idaho's is Idaho County at 8,478 square miles.
- Idaho County's land area is 9.1 times (806%) larger than Sussex County's.
Smallest county by area
- Delaware: New Castle County (426 sq mi) vs Idaho: Payette County (407 sq mi).
- New Castle County's land area is 1.0 times (5%) larger than Payette County's.
Most populous county
- Delaware: New Castle County (588,093 people) vs Idaho: Ada County (535,799 people).
- New Castle County's population is 1.1 times (10%) larger than Ada County's.
Least populous county
- Delaware: Kent County (192,690 people) vs Idaho: Clark County (794 people).
- Kent County's population is 242.7 times larger than Clark County's.
Richest county
- Delaware: Sussex County ($73,647 per capita income) vs Idaho: Blaine County ($202,612).
- Blaine County's income is 2.8 times (175%) richer than Sussex County's.
Poorest county
- Delaware: Kent County ($55,474 per capita income) vs Idaho: Madison County ($29,485).
- Kent County's income is 1.9 times (88%) richer than Madison County's.
Delaware vs Idaho Taxes
State income tax
- Delaware has a top income tax rate of 6.6%, while Idaho has a top income tax rate of 5.3%.
- Delaware's top rate is 1.3 percentage points higher.
Property tax
- Delaware: 0.47% effective rate vs Idaho: 0.43% of home value per year.
- Delaware's rate is 0.04 percentage points higher.
Sales tax
- Delaware: 0% combined state and average local rate vs Idaho: 6.03%.
- Idaho's combined rate is 6.03 percentage points higher.
Official Websites
Delaware official website · Idaho official website
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More Size Comparisons
All Delaware size comparisons · All Idaho size comparisons
Area, elevation and boundary figures come from official national statistics and US Census Bureau and Natural Earth boundary data; US state population, economic, county and tax figures come from the US Census Bureau, the Bureau of Economic Analysis and the Tax Foundation. Figures are rounded and for general reference.