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/KS/OLDEST

ZIP Codes With the Oldest Population in Kansas

What this measures. Median age of residents, ACS 5-year estimate. Source: Census American Community Survey, data release 2026-10-12.

# ZIP City County Median age
1 66970 Webber Jewell 86.0
2 66843 Cedar Point Chase 78.9
3 67843 Fort Dodge Ford 75.7
4 67055 Greenwich Sedgwick 73.4
5 67482 Talmage Dickinson 73.2
6 66838 Burdick Morris 70.1
7 67012 Beaumont Butler 70.1
8 67673 Waldo Osborne 70.1
9 66936 Burr Oak Jewell 69.8
10 67021 Byers Pratt 69.4
11 67626 Bunker Hill Russell 69.4
12 67840 Englewood Clark 68.5
13 67143 Sun City Barber 68.4
14 67511 Albert Rush 67.1
15 67559 Nekoma Rush 67.1
16 67566 Partridge Reno 66.8
17 67065 Isabel Pratt 66.3
18 67836 Coolidge Hamilton 66.1
19 66406 Beattie Marshall 65.5
20 67953 Richfield Morton 65.4
21 67649 Luray Russell 65.0
22 67882 Wright Ford 65.0
23 67519 Belpre Edwards 64.7
24 66964 Republic Republic 64.6
25 67418 Barnard Lincoln 64.5
26 67650 Morland Graham 64.5
27 66429 Grantville Jefferson 64.3
28 67018 Bluff City Harper 64.1
29 67645 Lenora Norton 63.9
30 67629 Clayton Norton 63.7
31 66862 Matfield Green Chase 63.3
32 67572 Ransom Ness 63.1
33 67660 Pfeifer Ellis 63.0
34 67628 Cedar Smith 62.7
35 66058 Muscotah Atchison 62.3
36 66518 Oketo Marshall 62.3
37 66952 Lebanon Smith 62.3
38 67751 Park Gove 62.2
39 66425 Fairview Brown 62.0
40 67635 Dresden Decatur 61.5
41 66777 Toronto Greenwood 61.4
42 67574 Rozel Pawnee 61.4
43 67427 Bushton Rice 61.2
44 66541 Summerfield Marshall 61.0
45 67474 Portis Smith 61.0
46 66741 Garland Bourbon 60.5
47 66760 Opolis Crawford 60.5
48 66023 Effingham Atchison 60.3
49 66751 La Harpe Allen 60.0
50 67137 Severy Greenwood 59.9

Showing the top 50 of 694 ZIP codes in Kansas that have this figure . 66970 ranks 1st at 86.0, against 59.9 in 50th place.

Other rankings for Kansas

Cite this page

zipcodes.pro. “ZIP Codes With the Oldest Population in Kansas.” Data release 2026-10-12. Retrieved 2026-10-20. https://zipcodes.pro/rankings/ks/oldest

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