The map above shows Alabama and Idaho side by side at exactly the same scale, using equal-area projections, so their true relative sizes are preserved.
Alabama vs Idaho Geography
Land area
- Alabama has a land area of 50,651 square miles (131,185 km²), while Idaho has 82,645 square miles (214,051 km²).
- Idaho's land area is 1.6 times (63%) larger than Alabama's.
Total area
- Alabama: 52,420 square miles (135,767 km²) vs Idaho: 83,569 square miles (216,441 km²), including inland and coastal water.
- Idaho's total area is 1.6 times (59%) larger than Alabama's.
Length
- Alabama is 331 miles (532 km) long from north to south; Idaho is 483 miles (778 km).
- Idaho's north-south length is 1.5 times (46%) longer than Alabama's.
Width
- Alabama spans 212 miles (341 km) east to west; Idaho spans 352 miles (566 km).
- Idaho's east-west width is 1.7 times (66%) wider than Alabama's.
Highest point
- Alabama's highest point is Cheaha Mountain at 2,405 feet (733 m); Idaho's is Borah Peak at 12,631 feet (3,850 m).
- Borah Peak is 10,226 feet higher than Cheaha Mountain.
Lowest point
- Alabama's lowest point is Gulf of Mexico at 0 feet; Idaho's is Snake River at 718 feet.
- Alabama's lowest point is 718 feet lower.
Alabama vs Idaho Population and History
Population
- Alabama has a population of 5,157,699 (2024), while Idaho has 2,001,619 (2024).
- Alabama's population is 2.6 times (158%) larger than Idaho's.
Population density
- Alabama: 101.8 people per square mile vs Idaho: 24.2.
- Alabama's population density is 4.2 times (321%) higher than Idaho's.
Biggest city
- Alabama's biggest city is Huntsville with 230,402 people; Idaho's is Boise with 237,963.
- Huntsville and Boise have about the same population.
Largest metro area
- Alabama's largest metropolitan area is Birmingham, AL metro area (1,192,583 people) vs Idaho's Boise City, ID metro area (845,877).
- Birmingham, AL metro area's population is 1.4 times (41%) larger than Boise City, ID metro area's.
History
- Alabama: Admitted to the Union on December 14, 1819, as the 22nd state.
- Idaho: Admitted to the Union on July 3, 1890, as the 43rd state.
- In its current form, Alabama is the older of the two by 71 years.
Alabama vs Idaho Economy
GDP
- Alabama's GDP is $325.3 billion (2024) vs Idaho's $129.0 billion.
- Alabama's economic output is 2.5 times (152%) larger than Idaho's.
GDP per capita
- Alabama: $63,080 per person vs Idaho: $64,457.
- Alabama and Idaho have about the same GDP per capita.
Average income
- Alabama: $57,311 vs Idaho: $62,323 average income per person (per capita personal income).
- Idaho's average income is 1.1 times (9%) higher than Alabama's.
Alabama vs Idaho Counties
Number of counties
- Alabama has 67 counties, while Idaho has 44.
- Alabama's county count is 1.5 times (52%) higher than Idaho's.
Biggest county by area
- Alabama's largest county is Baldwin County at 1,590 square miles; Idaho's is Idaho County at 8,478 square miles.
- Idaho County's land area is 5.3 times (433%) larger than Baldwin County's.
Smallest county by area
- Alabama: Etowah County (535 sq mi) vs Idaho: Payette County (407 sq mi).
- Etowah County's land area is 1.3 times (32%) larger than Payette County's.
Most populous county
- Alabama: Jefferson County (664,744 people) vs Idaho: Ada County (535,799 people).
- Jefferson County's population is 1.2 times (24%) larger than Ada County's.
Least populous county
- Alabama: Greene County (7,127 people) vs Idaho: Clark County (794 people).
- Greene County's population is 9.0 times (798%) larger than Clark County's.
Richest county
- Alabama: Jefferson County ($75,312 per capita income) vs Idaho: Blaine County ($202,612).
- Blaine County's income is 2.7 times (169%) richer than Jefferson County's.
Poorest county
- Alabama: Bullock County ($39,403 per capita income) vs Idaho: Madison County ($29,485).
- Bullock County's income is 1.3 times (34%) richer than Madison County's.
Alabama vs Idaho Taxes
State income tax
- Alabama has a top income tax rate of 5%, while Idaho has a top income tax rate of 5.3%.
- Idaho's top rate is 0.3 percentage points higher.
Property tax
- Alabama: 0.38% effective rate vs Idaho: 0.43% of home value per year.
- Idaho's rate is 0.05 percentage points higher.
Sales tax
- Alabama: 9.46% combined state and average local rate vs Idaho: 6.03%.
- Alabama's combined rate is 3.43 percentage points higher.
Official Websites
Alabama official website · Idaho official website
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More Size Comparisons
All Alabama 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.