The map above shows Idaho and Texas side by side at exactly the same scale, using equal-area projections, so their true relative sizes are preserved.
Idaho vs Texas Geography
Land area: Idaho has a land area of 82,645 square miles (214,051 km²), while Texas has 261,259 square miles (676,657 km²). Texas' land area is 3.2 times (216%) larger than Idaho's.
Total area: Idaho: 83,569 square miles (216,441 km²) vs Texas: 268,599 square miles (695,668 km²), including inland and coastal water. Texas' total area is 3.2 times (221%) larger than Idaho's.
Length: Idaho is 483 miles (778 km) long from north to south; Texas is 808 miles (1,300 km). Texas' north-south length is 1.7 times (67%) longer than Idaho's.
Width: Idaho spans 352 miles (566 km) east to west; Texas spans 777 miles (1,250 km). Texas' east-west width is 2.2 times (121%) wider than Idaho's.
Highest point: Idaho's highest point is Borah Peak at 12,631 feet (3,850 m); Texas's is Guadalupe Peak at 8,730 feet (2,661 m). Borah Peak is 3,901 feet higher than Guadalupe Peak.
Lowest point: Idaho's lowest point is Snake River at 718 feet; Texas's is Gulf of Mexico at 0 feet. Texas's lowest point is 718 feet lower.
Idaho vs Texas Population and History
Population: Idaho has a population of 2,001,619 (2024), while Texas has 31,290,831 (2024). Texas' population is 15.6 times larger than Idaho's.
Population density: Idaho: 24.2 people per square mile vs Texas: 119.8. Texas' population density is 5.0 times (395%) higher than Idaho's.
Biggest city: Idaho's biggest city is Boise with 237,963 people; Texas's is Houston with 2,390,125. Houston's population is 10.0 times larger than Boise's.
Largest metro area: Idaho's largest metropolitan area is Boise City, ID metro area (845,877 people) vs Texas's Dallas-Fort Worth-Arlington, TX metro area (8,344,032). Dallas-Fort Worth-Arlington, TX metro area's population is 9.9 times (886%) larger than Boise City, ID metro area's.
History: Idaho: Admitted to the Union on July 3, 1890, as the 43rd state. Texas: Admitted to the Union on December 29, 1845, as the 28th state. In its current form, Texas is the older of the two by 45 years.
Idaho vs Texas Economy
GDP: Idaho's GDP is $129.0 billion (2024) vs Texas's $2,769.8 billion. Texas' economic output is 21.5 times larger than Idaho's.
GDP per capita: Idaho: $64,457 per person vs Texas: $88,517. Texas' GDP per capita is 1.4 times (37%) higher than Idaho's.
Average income: Idaho: $62,323 vs Texas: $69,823 average income per person (per capita personal income). Texas' average income is 1.1 times (12%) higher than Idaho's.
Idaho vs Texas Counties
Number of counties: Idaho has 44 counties, while Texas has 254. Texas' county count is 5.8 times (477%) higher than Idaho's.
Biggest county by area: Idaho's largest county is Idaho County at 8,478 square miles; Texas's is Brewster County at 6,184 square miles. Idaho County's land area is 1.4 times (37%) larger than Brewster County's.
Smallest county by area: Idaho: Payette County (407 sq mi) vs Texas: Rockwall County (127 sq mi). Payette County's land area is 3.2 times (220%) larger than Rockwall County's.
Most populous county: Idaho: Ada County (535,799 people) vs Texas: Harris County (5,009,302 people). Harris County's population is 9.3 times (835%) larger than Ada County's.
Least populous county: Idaho: Clark County (794 people) vs Texas: Loving County (48 people). Clark County's population is 16.5 times larger than Loving County's.
Richest county: Idaho: Blaine County ($202,612 per capita income) vs Texas: Loving County ($220,625). Loving County's income is 1.1 times (9%) richer than Blaine County's.
Poorest county: Idaho: Madison County ($29,485 per capita income) vs Texas: Starr County ($34,180). Starr County's income is 1.2 times (16%) richer than Madison County's.
Idaho vs Texas Taxes
State income tax: Idaho has a top income tax rate of 5.3%, while Texas has no state income tax. Idaho's top rate is 5.3 percentage points higher.
Property tax: Idaho: 0.43% effective rate vs Texas: 1.31% of home value per year. Texas's rate is 0.88 percentage points higher.
Sales tax: Idaho: 6.03% combined state and average local rate vs Texas: 8.2%. Texas's combined rate is 2.17 percentage points higher.
Official Websites
Idaho official website · Texas official website
More Size Comparisons
All Idaho size comparisons · All Texas 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.