Every ZIP code in the United States, with weather, radar, trivia and the numbers behind it. Five digits since 1963!

ZIP stands for Zone Improvement Plan. The codes went live on July 1, 1963.The lowest ZIP code is 00501 — the IRS in Holtsville, New York.The highest ZIP code is 99950, in Ketchikan, Alaska.Type 07734 into a calculator and turn it upside down: hELLO. It is Keansburg, New Jersey.12345 belongs to one company: General Electric in Schenectady, New York.The first digit is a region: 0 is New England and New Jersey, 9 is the West Coast, Alaska and Hawaii.Mr. ZIP, the cartoon mailman, was the mascot that sold the idea to America.ZIP+4 arrived in 1983 and can narrow a ZIP down to one side of one block.A ZIP code is a mail route, not a place: plenty of them cross county and even state lines.Play ZIP Hunt: guess the secret ZIP code of the day in six tries.
zipcodes.pro — RANKINGS/AK/LARGEST-AREA

Largest ZIP Codes in Alaska by Land Area

What this measures. Land area of the Census tabulation area, in square miles. Water is excluded. Source: Census Gazetteer, data release 2026-10-12.

# ZIP City County Land area
1 99557 Aniak Bethel 13,680.12 sq mi
2 99576 Dillingham Dillingham 11,432.58 sq mi
3 99738 Eagle Southeast Fairbanks 10,065.63 sq mi
4 99566 Chitina Copper River 9,379.92 sq mi
5 99740 Fort Yukon Yukon-Koyukuk 8,050.54 sq mi
6 99768 Ruby Yukon-Koyukuk 8,009.62 sq mi
7 99627 Mc Grath Yukon-Koyukuk 6,659.24 sq mi
8 99730 Central Yukon-Koyukuk 6,470.12 sq mi
9 99737 Delta Junction Southeast Fairbanks 5,472.62 sq mi
10 99780 Tok Southeast Fairbanks 4,907.51 sq mi
11 99635 Nikiski Kenai Peninsula 4,905.03 sq mi
12 99667 Skwentna Matanuska-Susitna 4,872.52 sq mi
13 99760 Nenana Yukon-Koyukuk 4,748.99 sq mi
14 99691 Nikolai Yukon-Koyukuk 4,624.96 sq mi
15 99615 Kodiak Kodiak Island 4,127.61 sq mi
16 99772 Shishmaref Nome 3,978.13 sq mi
17 99752 Kotzebue Northwest Arctic 3,966.70 sq mi
18 99573 Copper Center Copper River 3,823.31 sq mi
19 99588 Glennallen Copper River 3,507.55 sq mi
20 99574 Cordova Chugach 3,292.27 sq mi
21 99712 Fairbanks Fairbanks North Star 3,264.10 sq mi
22 99743 Healy Denali 3,229.38 sq mi
23 99827 Haines Haines 3,120.67 sq mi
24 99833 Petersburg Petersburg 2,959.59 sq mi
25 99729 Cantwell Matanuska-Susitna 2,947.73 sq mi
26 99739 Elim Nome 2,902.38 sq mi
27 99664 Seward Kenai Peninsula 2,688.37 sq mi
28 99640 Nondalton Lake and Peninsula 2,685.59 sq mi
29 99835 Sitka Sitka 2,570.16 sq mi
30 99929 Wrangell Wrangell 2,413.66 sq mi
31 99781 Venetie Yukon-Koyukuk 2,372.48 sq mi
32 99921 Craig Prince of Wales-Hyder 2,241.45 sq mi
33 99801 Juneau Juneau 2,199.42 sq mi
34 99519 Anchorage North Slope 2,136.04 sq mi
35 99901 Ketchikan Ketchikan Gateway 1,959.03 sq mi
36 99756 Manley Hot Springs Yukon-Koyukuk 1,890.05 sq mi
37 99674 Sutton Matanuska-Susitna 1,880.00 sq mi
38 99586 Gakona Copper River 1,846.52 sq mi
39 99684 Unalakleet Nome 1,832.37 sq mi
40 99762 Nome Nome 1,710.68 sq mi
41 99688 Willow Matanuska-Susitna 1,677.49 sq mi
42 99683 Trapper Creek Matanuska-Susitna 1,573.67 sq mi
43 99764 Northway Southeast Fairbanks 1,370.54 sq mi
44 99686 Valdez Chugach 1,362.52 sq mi
45 99613 King Salmon Lake and Peninsula 1,217.21 sq mi
46 99676 Talkeetna Matanuska-Susitna 1,121.72 sq mi
47 99603 Homer Kenai Peninsula 1,068.83 sq mi
48 99568 Clam Gulch Kenai Peninsula 879.33 sq mi
49 99820 Angoon Hoonah-Angoon 873.26 sq mi
50 99657 Russian Mission Kusilvak 706.66 sq mi

Showing the top 50 of 245 ZIP codes in Alaska that have this figure and meet the threshold above. 99557 ranks 1st at 13,680.12 sq mi, against 706.66 sq mi in 50th place.

Other rankings for Alaska

Cite this page

zipcodes.pro. “Largest ZIP Codes in Alaska by Land Area.” Data release 2026-10-12. Retrieved 2026-10-20. https://zipcodes.pro/rankings/ak/largest-area

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