The map above shows New Mexico and Pennsylvania side by side at exactly the same scale, using equal-area projections, so their true relative sizes are preserved.
New Mexico vs Pennsylvania Geography
Land area
- New Mexico has a land area of 121,313 square miles (314,198 km²), while Pennsylvania has 44,742 square miles (115,882 km²).
- New Mexico's land area is 2.7 times (171%) larger than Pennsylvania's.
Total area
- New Mexico: 121,593 square miles (314,925 km²) vs Pennsylvania: 46,054 square miles (119,279 km²), including inland and coastal water.
- New Mexico's total area is 2.6 times (164%) larger than Pennsylvania's.
Length
- New Mexico is 395 miles (635 km) long from north to south; Pennsylvania is 284 miles (458 km).
- New Mexico's north-south length is 1.4 times (39%) longer than Pennsylvania's.
Width
- New Mexico spans 498 miles (801 km) east to west; Pennsylvania spans 307 miles (495 km).
- New Mexico's east-west width is 1.6 times (62%) wider than Pennsylvania's.
Highest point
- New Mexico's highest point is Wheeler Peak at 13,150 feet (4,008 m); Pennsylvania's is Mount Davis at 3,210 feet (978 m).
- Wheeler Peak is 9,940 feet higher than Mount Davis.
Lowest point
- New Mexico's lowest point is Red Bluff Reservoir at 2,842 feet; Pennsylvania's is Delaware River at 0 feet.
- Pennsylvania's lowest point is 2,842 feet lower.
New Mexico vs Pennsylvania Population and History
Population
- New Mexico has a population of 2,130,256 (2024), while Pennsylvania has 13,078,751 (2024).
- Pennsylvania's population is 6.1 times (514%) larger than New Mexico's.
Population density
- New Mexico: 17.6 people per square mile vs Pennsylvania: 292.3.
- Pennsylvania's population density is 16.6 times higher than New Mexico's.
Biggest city
- New Mexico's biggest city is Albuquerque with 560,326 people; Pennsylvania's is Philadelphia with 1,573,916.
- Philadelphia's population is 2.8 times (181%) larger than Albuquerque's.
Largest metro area
- New Mexico's largest metropolitan area is Albuquerque, NM metro area (926,303 people) vs Pennsylvania's Philadelphia-Camden-Wilmington, PA-NJ-DE-MD metro area (6,330,422).
- Philadelphia-Camden-Wilmington, PA-NJ-DE-MD metro area's population is 6.8 times (583%) larger than Albuquerque, NM metro area's.
History
- New Mexico: Admitted to the Union on January 6, 1912, as the 47th state.
- Pennsylvania: Admitted to the Union on December 12, 1787, as the 2nd state.
- In its current form, Pennsylvania is the older of the two by 125 years.
New Mexico vs Pennsylvania Economy
GDP
- New Mexico's GDP is $147.1 billion (2024) vs Pennsylvania's $1,007.9 billion.
- Pennsylvania's economic output is 6.9 times (585%) larger than New Mexico's.
GDP per capita
- New Mexico: $69,046 per person vs Pennsylvania: $77,062.
- Pennsylvania's GDP per capita is 1.1 times (12%) higher than New Mexico's.
Average income
- New Mexico: $58,249 vs Pennsylvania: $70,678 average income per person (per capita personal income).
- Pennsylvania's average income is 1.2 times (21%) higher than New Mexico's.
New Mexico vs Pennsylvania Counties
Number of counties
- New Mexico has 33 counties, while Pennsylvania has 67.
- Pennsylvania's county count is 2.0 times (103%) higher than New Mexico's.
Biggest county by area
- New Mexico's largest county is Catron County at 6,924 square miles; Pennsylvania's is Lycoming County at 1,229 square miles.
- Catron County's land area is 5.6 times (463%) larger than Lycoming County's.
Smallest county by area
- New Mexico: Los Alamos County (109 sq mi) vs Pennsylvania: Montour County (130 sq mi).
- Montour County's land area is 1.2 times (19%) larger than Los Alamos County's.
Most populous county
- New Mexico: Bernalillo County (671,747 people) vs Pennsylvania: Philadelphia County (1,573,916 people).
- Philadelphia County's population is 2.3 times (134%) larger than Bernalillo County's.
Least populous county
- New Mexico: Harding County (635 people) vs Pennsylvania: Cameron County (4,348 people).
- Cameron County's population is 6.8 times (585%) larger than Harding County's.
Richest county
- New Mexico: Los Alamos County ($98,378 per capita income) vs Pennsylvania: Chester County ($110,883).
- Chester County's income is 1.1 times (13%) richer than Los Alamos County's.
Poorest county
- New Mexico: Cibola County ($36,397 per capita income) vs Pennsylvania: Forest County ($30,234).
- Cibola County's income is 1.2 times (20%) richer than Forest County's.
New Mexico vs Pennsylvania Taxes
State income tax
- New Mexico has a top income tax rate of 5.9%, while Pennsylvania has a top income tax rate of 3.07%.
- New Mexico's top rate is 2.83 percentage points higher.
Property tax
- New Mexico: 0.63% effective rate vs Pennsylvania: 1.16% of home value per year.
- Pennsylvania's rate is 0.53 percentage points higher.
Sales tax
- New Mexico: 7.68% combined state and average local rate vs Pennsylvania: 6.34%.
- New Mexico's combined rate is 1.34 percentage points higher.
Official Websites
New Mexico official website · Pennsylvania official website
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More Size Comparisons
All New Mexico size comparisons · All Pennsylvania 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.