The map above shows Iowa and New Hampshire side by side at exactly the same scale, using equal-area projections, so their true relative sizes are preserved.
Iowa vs New Hampshire Geography
Land area
- Iowa has a land area of 55,854 square miles (144,660 km²), while New Hampshire has 8,954 square miles (23,190 km²).
- Iowa's land area is 6.2 times (524%) larger than New Hampshire's.
Total area
- Iowa: 56,273 square miles (145,746 km²) vs New Hampshire: 9,350 square miles (24,216 km²), including inland and coastal water.
- Iowa's total area is 6.0 times (502%) larger than New Hampshire's.
Length
- Iowa is 216 miles (347 km) long from north to south; New Hampshire is 180 miles (290 km).
- Iowa's north-south length is 1.2 times (20%) longer than New Hampshire's.
Width
- Iowa spans 335 miles (539 km) east to west; New Hampshire spans 95 miles (152 km).
- Iowa's east-west width is 3.5 times (253%) wider than New Hampshire's.
Highest point
- Iowa's highest point is Hawkeye Point at 1,669 feet (509 m); New Hampshire's is Mount Washington at 6,277 feet (1,913 m).
- Mount Washington is 4,608 feet higher than Hawkeye Point.
Lowest point
- Iowa's lowest point is Mississippi River at 480 feet; New Hampshire's is Atlantic Ocean at 0 feet.
- New Hampshire's lowest point is 480 feet lower.
Iowa vs New Hampshire Population and History
Population
- Iowa has a population of 3,241,488 (2024), while New Hampshire has 1,409,032 (2024).
- Iowa's population is 2.3 times (130%) larger than New Hampshire's.
Population density
- Iowa: 58.0 people per square mile vs New Hampshire: 157.4.
- New Hampshire's population density is 2.7 times (171%) higher than Iowa's.
Biggest city
- Iowa's biggest city is Des Moines with 213,096 people; New Hampshire's is Manchester with 116,386.
- Des Moines' population is 1.8 times (83%) larger than Manchester's.
Largest metro area
- Iowa's largest metropolitan area is Omaha, NE-IA metro area (1,001,010 people) vs New Hampshire's Boston-Cambridge-Newton, MA-NH metro area (5,025,517).
- Boston-Cambridge-Newton, MA-NH metro area's population is 5.0 times (402%) larger than Omaha, NE-IA metro area's.
History
- Iowa: Admitted to the Union on December 28, 1846, as the 29th state.
- New Hampshire: Admitted to the Union on June 21, 1788, as the 9th state.
- In its current form, New Hampshire is the older of the two by 58 years.
Iowa vs New Hampshire Economy
GDP
- Iowa's GDP is $265.8 billion (2024) vs New Hampshire's $119.3 billion.
- Iowa's economic output is 2.2 times (123%) larger than New Hampshire's.
GDP per capita
- Iowa: $81,998 per person vs New Hampshire: $84,694.
- Iowa and New Hampshire have about the same GDP per capita.
Average income
- Iowa: $65,225 vs New Hampshire: $83,192 average income per person (per capita personal income).
- New Hampshire's average income is 1.3 times (28%) higher than Iowa's.
Iowa vs New Hampshire Counties
Number of counties
- Iowa has 99 counties, while New Hampshire has 10.
- Iowa's county count is 9.9 times (890%) higher than New Hampshire's.
Biggest county by area
- Iowa's largest county is Kossuth County at 973 square miles; New Hampshire's is Coos County at 1,795 square miles.
- Coos County's land area is 1.8 times (84%) larger than Kossuth County's.
Smallest county by area
- Iowa: Dickinson County (381 sq mi) vs New Hampshire: Strafford County (368 sq mi).
- Dickinson County and Strafford County have about the same land area.
Most populous county
- Iowa: Polk County (516,185 people) vs New Hampshire: Hillsborough County (430,462 people).
- Polk County's population is 1.2 times (20%) larger than Hillsborough County's.
Least populous county
- Iowa: Adams County (3,606 people) vs New Hampshire: Coos County (31,094 people).
- Coos County's population is 8.6 times (762%) larger than Adams County's.
Richest county
- Iowa: Mitchell County ($98,211 per capita income) vs New Hampshire: Rockingham County ($100,216).
- Mitchell County and Rockingham County have about the same income.
Poorest county
- Iowa: Decatur County ($46,134 per capita income) vs New Hampshire: Coos County ($60,657).
- Coos County's income is 1.3 times (31%) richer than Decatur County's.
Iowa vs New Hampshire Taxes
State income tax
- Iowa has a top income tax rate of 3.8%, while New Hampshire has no state income tax.
- Iowa's top rate is 3.8 percentage points higher.
Property tax
- Iowa: 1.29% effective rate vs New Hampshire: 1.46% of home value per year.
- New Hampshire's rate is 0.17 percentage points higher.
Sales tax
- Iowa: 6.94% combined state and average local rate vs New Hampshire: 0%.
- Iowa's combined rate is 6.94 percentage points higher.
Official Websites
Iowa official website · New Hampshire official website
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More Size Comparisons
All Iowa size comparisons · All New Hampshire 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.