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/703

ZIP codes starting with 703

ZIP codes
38
States
LA
Largest city
Thibodaux, LA
Population
264,114

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 703xx

ZIP codes starting with 703
ZIP City Type Population Median income Median home
70301 Thibodaux , LA Standard 50,095 $58,394 $217,700
70302 Thibodaux , LA No street area — — —
70310 Thibodaux , LA Standard 327 — —
70339 Pierre Part , LA Standard 4,848 $51,659 $170,500
70340 Amelia , LA Standard 0 — —
70341 Belle Rose , LA Standard 3,690 $35,346 $88,500
70342 Berwick , LA Standard 4,607 $51,580 $212,400
70343 Bourg , LA Standard 5,280 $73,815 $203,900
70344 Chauvin , LA Standard 4,724 $51,771 $110,500
70345 Cut Off , LA Standard 8,344 $62,216 $164,500
70346 Donaldsonville , LA Standard 9,927 $35,280 $176,900
70352 Donner , LA Standard 167 — —
70353 Dulac , LA Standard 442 $35,500 $106,900
70354 Galliano , LA Standard 3,404 $48,462 $111,900
70355 Gheens , LA Standard 957 $56,188 $102,700
70356 Gibson , LA Standard 1,495 $32,756 $175,600
70357 Golden Meadow , LA Standard 2,351 $71,383 $132,900
70358 Grand Isle , LA Standard 623 — $269,500
70359 Gray , LA Standard 10,038 $56,121 $153,400
70360 Houma , LA Standard 28,574 $84,890 $286,000
70361 Houma , LA No street area — — —
70363 Houma , LA Standard 24,127 $46,748 $147,400
70364 Houma , LA Standard 28,716 $68,843 $191,900
70371 Kraemer , LA No street area — — —
70372 Labadieville , LA Standard 1,968 $40,659 $105,200
70373 Larose , LA Standard 5,539 $87,143 $170,900
70374 Lockport , LA Standard 5,872 $70,833 $180,400
70375 Mathews , LA Standard 178 — —
70377 Montegut , LA Standard 3,056 $60,665 $130,600
70380 Morgan City , LA Standard 20,529 $54,595 $141,600
70381 Morgan City , LA No street area — — —
70390 Napoleonville , LA Standard 7,160 $58,667 $162,900
70391 Paincourtville , LA Standard 0 — —
70392 Patterson , LA Standard 8,173 $57,959 $159,100
70393 Plattenville , LA Standard 117 $19,256 $214,900
70394 Raceland , LA Standard 13,395 $64,337 $200,300
70395 Schriever , LA Standard 4,420 $78,488 $196,800
70397 Theriot , LA Standard 971 $115,455 $171,400

Cite this page

zipcodes.pro. “ZIP codes starting with 703.” Data release 2026-10-12. Retrieved 2026-10-20. https://zipcodes.pro/prefix/703

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