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/177

ZIP codes starting with 177

ZIP codes
44
States
PA
Largest city
Williamsport, PA
Population
165,322

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 177xx

ZIP codes starting with 177
ZIP City Type Population Median income Median home
17701 Williamsport , PA Standard 43,104 $53,237 $183,900
17702 Williamsport , PA Standard 10,488 $70,210 $196,900
17703 Williamsport , PA No street area — — —
17705 Williamsport , PA No street area — — —
17720 Antes Fort , PA Standard 250 $70,300 $176,800
17721 Avis , PA Standard 1,419 $59,073 $140,800
17723 Jersey Shore , PA Standard 34 $77,500 $183,300
17724 Canton , PA Standard 4,693 $55,817 $175,000
17726 Castanea , PA No street area — — —
17727 Cedar Run , PA Standard 41 $49,464 —
17728 Cogan Station , PA Standard 4,675 $77,165 $235,500
17729 Cross Fork , PA Standard 156 $48,333 $85,000
17730 Dewart , PA Standard 11 — —
17731 Eagles Mere , PA Standard 188 $98,750 $313,900
17735 Grover , PA No street area — — —
17737 Hughesville , PA Standard 5,970 $70,131 $203,800
17739 Jersey Mills , PA Standard 27 $55,417 $275,000
17740 Jersey Shore , PA Standard 12,017 $70,236 $179,600
17742 Lairdsville , PA Standard 21 $71,250 $160,000
17744 Linden , PA Standard 2,808 $72,500 $196,100
17745 Lock Haven , PA Standard 17,718 $58,555 $177,100
17747 Loganton , PA Standard 3,421 $71,731 $208,000
17748 Mc Elhattan , PA Standard 184 $70,417 $93,500
17749 Mc Ewensville , PA Standard 234 $74,500 $196,900
17750 Mackeyville , PA Standard 177 $147,723 $147,900
17751 Mill Hall , PA Standard 7,431 $75,072 $215,100
17752 Montgomery , PA Standard 4,975 $71,118 $186,700
17754 Montoursville , PA Standard 12,061 $72,633 $249,300
17756 Muncy , PA Standard 12,856 $77,043 $222,700
17758 Muncy Valley , PA Standard 943 $59,167 $198,600
17760 North Bend , PA Standard 572 $66,528 $130,900
17762 Picture Rocks , PA Standard 557 $95,625 $184,700
17763 Ralston , PA Standard 241 $57,083 $114,100
17764 Renovo , PA Standard 2,361 $41,173 $83,800
17765 Roaring Branch , PA Standard 1,279 $88,553 $201,000
17768 Shunk , PA Standard 367 $54,583 $145,800
17769 Slate Run , PA Standard 31 $130,000 —
17771 Trout Run , PA Standard 2,929 $71,016 $198,000
17772 Turbotville , PA Standard 2,693 $81,146 $241,900
17774 Unityville , PA Standard 962 $70,556 $236,100
17776 Waterville , PA Standard 145 $67,500 $164,600
17777 Watsontown , PA Standard 7,030 $67,188 $216,800
17778 Westport , PA Standard 74 $56,250 $156,900
17779 Woolrich , PA Standard 179 $54,311 $164,300

Cite this page

zipcodes.pro. “ZIP codes starting with 177.” Data release 2026-10-12. Retrieved 2026-10-20. https://zipcodes.pro/prefix/177

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