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/TX/LARGEST-AREA

Largest ZIP Codes in Texas 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 76943 Ozona Crockett 2,077.98 sq mi
2 79022 Dalhart Dallam 1,966.11 sq mi
3 78880 Rocksprings Edwards 1,846.61 sq mi
4 76950 Sonora Sutton 1,792.38 sq mi
5 79843 Marfa Presidio 1,480.00 sq mi
6 79734 Fort Davis Jeff Davis 1,284.14 sq mi
7 79735 Fort Stockton Pecos 1,238.44 sq mi
8 79830 Alpine Brewster 1,165.08 sq mi
9 79045 Hereford Deaf Smith 1,130.75 sq mi
10 76932 Big Lake Reagan 1,122.67 sq mi
11 79837 Dell City Otero 1,087.49 sq mi
12 78832 Brackettville Kinney 1,071.24 sq mi
13 79772 Pecos Reeves 1,048.83 sq mi
14 78840 Del Rio Val Verde 1,046.30 sq mi
15 79720 Big Spring Howard 986.01 sq mi
16 76936 Eldorado Schleicher 939.26 sq mi
17 79360 Seminole Gaines 918.60 sq mi
18 78361 Hebbronville Jim Hogg 909.48 sq mi
19 79014 Canadian Hemphill 908.08 sq mi
20 79201 Childress Childress 875.55 sq mi
21 78014 Cotulla La Salle 874.92 sq mi
22 79070 Perryton Ochiltree 865.09 sq mi
23 79549 Snyder Scurry 860.50 sq mi
24 76380 Seymour Baylor 857.38 sq mi
25 78801 Uvalde Uvalde 853.57 sq mi
26 76859 Menard Menard 851.00 sq mi
27 79248 Paducah Cottle 834.65 sq mi
28 79847 Salt Flat Culberson 831.48 sq mi
29 79842 Marathon Brewster 828.74 sq mi
30 79356 Post Garza 824.07 sq mi
31 79226 Clarendon Donley 816.44 sq mi
32 76849 Junction Kimble 809.54 sq mi
33 78837 Comstock Val Verde 806.57 sq mi
34 76951 Sterling City Sterling 804.75 sq mi
35 79331 Lamesa Dawson 797.87 sq mi
36 78072 Tilden McMullen 782.71 sq mi
37 79227 Crowell Foard 777.80 sq mi
38 79714 Andrews Andrews 760.96 sq mi
39 78019 Encinal Webb 744.57 sq mi
40 78624 Fredericksburg Gillespie 742.33 sq mi
41 79848 Sanderson Terrell 717.90 sq mi
42 78643 Llano Llano 712.26 sq mi
43 79081 Spearman Hansford 696.07 sq mi
44 76856 Mason Mason 691.35 sq mi
45 79706 Midland Midland 689.51 sq mi
46 79347 Muleshoe Bailey 684.02 sq mi
47 79035 Friona Parmer 670.12 sq mi
48 78045 Laredo Webb 663.03 sq mi
49 77351 Livingston Polk 636.94 sq mi
50 79854 Valentine Jeff Davis 632.81 sq mi

Showing the top 50 of 1,990 ZIP codes in Texas that have this figure and meet the threshold above. 76943 ranks 1st at 2,077.98 sq mi, against 632.81 sq mi in 50th place.

Other rankings for Texas

Cite this page

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

Underlying data is public domain or openly licensed — sources, vintages and licences.