County outline
Where Matanuska-Susitna Borough is located
Area breakdown
Land accounts for 97.8% of Matanuska-Susitna Borough’s measured area and water for 2.2%. Its combined area converts to 65,442.9 square kilometers or approximately 16,171,301 acres.
Green: land · blue: water
| Measurement | Square miles | Square kilometers | Acres |
|---|---|---|---|
| Land | 24,703.015 | 63,980.515 | 15,809,929.6 |
| Water | 564.643 | 1,462.419 | 361,371.5 |
| Total | 25,267.658 | 65,442.934 | 16,171,301.1 |
How Matanuska-Susitna Borough compares
By original Census land area, Matanuska-Susitna Borough ranks #6 of 30 in Alaska and #6 of 3,222 nationally. National rankings include the 50 states, District of Columbia, and Puerto Rico.
Its land area is 3.3 times the Alaska county-equivalent median of 7,486.4 square miles. It accounts for 4.3% of the combined county land area in the state.
See the complete Alaska ranking · What counts as a county equivalent?
What stands out about Matanuska-Susitna Borough?
Matanuska-Susitna Borough has more land than 3,216 of the other 3,221 county equivalents in the dataset.
A median is the middle county-equivalent measurement, not the average of the largest and smallest. All three bars use the same linear scale. Very small areas may appear as a thin sliver; the labels retain their values.
Does including water change its rank?
Using land plus water places Matanuska-Susitna Borough at #7 nationally by total area, 1 places farther from the top than its land rank. Other county equivalents gain more area when their water measurements are included.
Its water share is 2.2%, compared with a national county-equivalent median of 1.2% — 1.1 percentage points higher. This describes the statistical geography’s land/water mix, not flood exposure or developable land.
Closest positions in the national land ranking
These entries sit immediately beside Matanuska-Susitna Borough in the national ranking. They can be in different states and are not necessarily geographic neighbors.
| Land rank | County equivalent | Land mi² | Comparison |
|---|---|---|---|
| #5 | Southeast Fairbanks Census Area, Alaska | 24,839.3 | Compare |
| #6 | Matanuska-Susitna Borough, Alaska | 24,703 | This county |
| #7 | Copper River Census Area, Alaska | 24,646.1 | Compare |
Calculated from the same Census release as the area table. Total-area order uses original ALAND + AWATER; water shares and chart labels use published square miles. Calculation details.
Representative coordinates
The Census internal point is 62.265626, -149.503993. It represents a location inside the geography; it is not necessarily the centroid or the address of a courthouse.
Source and precision
U.S. Census Bureau, 2026 Gazetteer Files, Counties. Original ALAND: 63,980,513,694 m²; AWATER: 1,462,419,388 m². Rankings use ALAND; exact ties use ascending GEOID. Tables preserve Census-published square miles to three decimals, with conversions based on those values.
Common questions
How many acres of land are in Matanuska-Susitna Borough?
The land measurement converts to approximately 15,809,930 acres. Including water, total area is approximately 16,171,301 acres. One square mile equals 640 acres.
Why might another source show a different area?
Check whether it reports land or total area, its Census vintage, and its rounding. Our guide explains how to reconcile county area figures.
Can this establish a property boundary?
No. Statistical measurements and generalized maps do not establish property lines. Consult the relevant local surveying or land-records authority.