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zipcodes.pro — ZIP/61277

61277

ZIP 61277 is Prophetstown, Illinois, mostly in Whiteside County; area code 815; Central time.

Type
Standard
Time zone
America/Chicago
County
Whiteside +1 more
Metro area
Sterling, IL
Population
3,054
Coordinates
41.6136, -89.9306
☼ Live from 61277 — Prophetstown, IL

Weather right now

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Local time: —

Where 61277 is

Approximate ZIP boundary (Census ZCTA 2020). ZIP codes are mail routes, not areas, so the shape shown is the Census tabulation area that approximates it.

★ Weird and wonderful facts about 61277
  • 🔢 Type 61277 into a pocket calculator and turn it upside down: LLZIg — not quite a word, sorry.
  • ➕ As a number, 61,277 = 29 × 2113. Its digits add up to 23, a total 2,533 other ZIP codes share.
  • 💾In binary, the way a computer stores it: 1110111101011101
  • 🏠 Its numerical neighbours: 61276 (Preemption, IL, 39 mi away) and 61278 (Rapids City, IL, 21 mi away).
  • 🔄 Backwards, 61277 becomes 77216 — and that is a real ZIP code: Houston, TX, 870 miles away.
  • 👥 29 other ZIP codes are made of exactly the same digits (12767, 12776, 16727, 17267, 17726, 17762, …). The farthest-flung twin is 77216 in Houston, TX, 870 miles away.
  • 🧭 Farther north than 72% of all ZIP codes, and farther west than 56%.
  • 🎯469 miles east of the geographic center of the Lower 48, near Lebanon, Kansas.
  • 🌏 Dig straight through the Earth from 61277 and you would come out at 41.61°S, 90.07°E — 1,095 miles from Port-aux-Français, French Southern Territories, the nearest big city to that spot.
  • ☀Longest day of the year: 15h 12m of daylight. Shortest: 9h 09m.
  • 📏 At 133.7 square miles of land, 61277 is bigger than 84% of ZIP codes — room for about 101 Central Parks.
🌙 The sky over 61277 today
  • Working out the sun…
🌋 Shake report
  • Checking the USGS…

Source: USGS.

People and housing

Population3,054This ZIP3,054
Households1,167This ZIP1,167
Housing units1,330This ZIP1,330
Median age44.0This ZIP44.0Illinois39.0US 38.9
Median household income$70,363This ZIP$70,363Illinois$83,390US $80,734
Median home value$148,200This ZIP$148,200Illinois$263,300US $332,700
Median gross rent$801This ZIP$801Illinois$1,274US $1,413
Bachelor's degree or higher16.4%This ZIP16.4%
Mean commute27.2 minThis ZIP27.2 min
Population density22.8 / sq miThis ZIP22.8 / sq mi

Business and tax activity

Business establishments65This ZIP65
Employees748This ZIP748
Annual payroll$34,057,000This ZIP$34,057,000
Tax returns filed1,500This ZIP1,500
Total adjusted gross income$114,368,000This ZIP$114,368,000

Land area

Land area133.69 sq miThis ZIP133.69 sq mi
Water area0.89 sq miThis ZIP0.89 sq mi

Counties 61277 spans

A ZIP code is a mail route and ignores county lines. Shares are by overlapping land area.

CountyShare of this ZIP
Whiteside County 59.9%
Henry County 40.2%

Other place names in 61277

Census places whose land this ZIP code overlaps. The Postal Service may accept other city names in an address, too.

ZIP codes near 61277

ZIPCityDistance
61258 Hooppole, IL 6.4 mi
61283 Tampico, IL 7.5 mi
61261 Lyndon, IL 8.5 mi
61250 Erie, IL 9.8 mi
61251 Fenton, IL 10.8 mi
61243 Deer Grove, IL 13.0 mi
61346 New Bedford, IL 13.2 mi
61234 Annawan, IL 13.5 mi
61071 Rock Falls, IL 14.2 mi
61344 Mineral, IL 14.8 mi

Find every ZIP code within 10 miles of 61277 →

Questions about this ZIP code

Where is ZIP code 61277?

61277 is in Prophetstown, Illinois, in Whiteside County, part of the Sterling, IL micropolitan area. Its published point location is 41.6136, -89.9306.

What county is 61277 in?

61277 spans 2 counties: Whiteside County and Henry County. Most of it falls in Whiteside County, measured by overlapping land area — the county holding the most land in a ZIP code is not always the one holding the most residents.

What area code is 61277?

Prophetstown uses area code 815, from NANPA's telephone records.

What time zone is 61277 in?

61277 uses America/Chicago.

How many people live in 61277?

About 3,054 people live in ZIP code 61277, in 1,167 households, at 22.8 people per square mile. These are American Community Survey 5-year estimates for the ZIP Code Tabulation Area, not a headcount.

What is the median household income in 61277?

$70,363 a year, against $83,390 across Illinois.

What ZIP codes are near 61277?

The closest are 61258 (6.4 mi), 61283 (7.5 mi), 61261 (8.5 mi), 61250 (9.8 mi) and 61251 (10.8 mi).

Is 61277 a PO Box ZIP code?

61277 is a standard ZIP code. A normal ZIP code with street delivery.

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Cite this page

zipcodes.pro. “61277 ZIP Code — Prophetstown, Illinois (Whiteside County).” Data release 2026-10-12. Retrieved 2026-10-20. https://zipcodes.pro/zip/61277

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