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 — PREFIX/931

ZIP codes starting with 931

ZIP codes
21
States
CA
Largest city
Goleta, CA
Population
189,876

The first three digits of a ZIP code identify a sectional center facility — the postal processing plant that sorts mail for the area. It is a mail-routing grouping, not an administrative boundary.

Every ZIP code in 931xx

ZIP codes starting with 931
ZIP City Type Population Median income Median home
93101 Santa Barbara , CA Standard 31,554 $90,148 $1,184,000
93102 Santa Barbara , CA No street area — — —
93103 Santa Barbara , CA Standard 19,382 $122,159 $1,663,600
93105 Santa Barbara , CA Standard 24,437 $138,286 $1,663,000
93106 Santa Barbara , CA Standard 5,418 — —
93107 Santa Barbara , CA No street area — — —
93108 Santa Barbara , CA Standard 11,526 $230,419 $2,000,000+
93109 Santa Barbara , CA Standard 10,915 $123,347 $1,882,500
93110 Santa Barbara , CA Standard 15,436 $129,209 $1,199,500
93111 Santa Barbara , CA Standard 18,274 $144,353 $1,296,700
93116 Goleta , CA No street area — — —
93117 Goleta , CA Standard 52,934 $90,037 $1,082,400
93118 Goleta , CA No street area — — —
93120 Santa Barbara , CA No street area — — —
93121 Santa Barbara , CA No street area — — —
93130 Santa Barbara , CA No street area — — —
93140 Santa Barbara , CA No street area — — —
93150 Santa Barbara , CA No street area — — —
93160 Santa Barbara , CA No street area — — —
93190 Santa Barbara , CA No street area — — —
93199 Goleta , CA No street area — — —

Cite this page

zipcodes.pro. “ZIP codes starting with 931.” Data release 2026-10-12. Retrieved 2026-10-20. https://zipcodes.pro/prefix/931

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