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 — ZIP/95631

95631

ZIP 95631 is Foresthill, California, in Placer County; area code 530; Pacific time.

Type
Standard
Time zone
America/Los_Angeles
County
Placer
Population
6,946
Coordinates
39.0549, -120.7540
☼ Live from 95631 — Foresthill, CA

Weather right now

Asking the National Weather Service…

NEXRAD radar
Finding the nearest radar…
Local time: —

Where 95631 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 95631
  • 🔢 Type 95631 into a pocket calculator and turn it upside down: IEgSG — not quite a word, sorry.
  • ➕ As a number, 95,631 = 3 × 127 × 251. Its digits add up to 24, a total 2,425 other ZIP codes share.
  • 💾In binary, the way a computer stores it: 10111010110001111
  • 🏠 Its numerical neighbours: 95630 (Folsom, CA, 34 mi away) and 95632 (Galt, CA, 60 mi away).
  • 🔄 Backwards, 95631 becomes 13659 — and that is a real ZIP code: Lorraine, NY, 2,320 miles away.
  • 👥 44 other ZIP codes are made of exactly the same digits (13659, 13695, 15639, 15693, 15936, 15963, …). The farthest-flung twin is 96531 in FPO AA, a military post office, 7,058 miles away.
  • 🧭 Farther south than 50% of all ZIP codes, and farther west than 94%.
  • 🎯1,181 miles west of the geographic center of the Lower 48, near Lebanon, Kansas.
  • 🌏 Dig straight through the Earth from 95631 and you would come out at 39.05°S, 59.25°E — 893 miles from Port-aux-Français, French Southern Territories, the nearest big city to that spot.
  • ☀Longest day of the year: 14h 55m of daylight. Shortest: 9h 25m.
  • 📏 At 174.0 square miles of land, 95631 is bigger than 89% of ZIP codes — room for about 132 Central Parks.
🌙 The sky over 95631 today
  • Working out the sun…
🌋 Shake report
  • Checking the USGS…

Source: USGS.

People and housing

Population6,946This ZIP6,946
Households2,705This ZIP2,705
Housing units2,784This ZIP2,784
Median age43.6This ZIP43.6California37.9US 38.9
Median household income$104,402This ZIP$104,402California$99,122US $80,734
Median home value$496,900This ZIP$496,900California$734,700US $332,700
Median gross rent$1,814This ZIP$1,814California$2,036US $1,413
Bachelor's degree or higher22.2%This ZIP22.2%
Mean commute39.7 minThis ZIP39.7 min
Population density39.9 / sq miThis ZIP39.9 / sq mi

Business and tax activity

Business establishments92This ZIP92
Employees342This ZIP342
Annual payroll$13,398,000This ZIP$13,398,000
Tax returns filed2,940This ZIP2,940
Total adjusted gross income$254,702,000This ZIP$254,702,000

Land area

Land area173.98 sq miThis ZIP173.98 sq mi
Water area0.54 sq miThis ZIP0.54 sq mi

Other place names in 95631

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

ZIP codes near 95631

ZIPCityDistance
95717 Gold Run, CA 7.7 mi
95713 Colfax, CA 9.7 mi
95634 Georgetown, CA 11.0 mi
95714 Dutch Flat, CA 11.0 mi
95701 Alta, CA 11.9 mi
95736 Weimar, CA 12.0 mi
95712 Chicago Park, CA 12.9 mi
95635 Greenwood, CA 13.0 mi
95703 Applegate, CA 13.4 mi
95633 Garden Valley, CA 14.7 mi

Find every ZIP code within 10 miles of 95631 →

Questions about this ZIP code

Where is ZIP code 95631?

95631 is in Foresthill, California, in Placer County, part of the Sacramento-Roseville-Folsom, CA metropolitan area. Its published point location is 39.0549, -120.7540.

What county is 95631 in?

95631 lies in Placer County.

What area code is 95631?

Foresthill uses area code 530, from NANPA's telephone records.

What time zone is 95631 in?

95631 uses America/Los_Angeles.

How many people live in 95631?

About 6,946 people live in ZIP code 95631, in 2,705 households, at 39.9 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 95631?

$104,402 a year, against $99,122 across California.

What ZIP codes are near 95631?

The closest are 95717 (7.7 mi), 95713 (9.7 mi), 95634 (11 mi), 95714 (11 mi) and 95701 (11.9 mi).

Is 95631 a PO Box ZIP code?

95631 is a standard ZIP code. A normal ZIP code with street delivery.

Download or cite

Cite this page

zipcodes.pro. “95631 ZIP Code — Foresthill, California (Placer County).” Data release 2026-10-12. Retrieved 2026-10-20. https://zipcodes.pro/zip/95631

Machine-readable version of these facts:

curl https://zipcodes.pro/zip/95631.json

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