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/97640

97640

ZIP 97640 is Summer Lake, Oregon, in Lake County; Pacific time.

Type
Standard
Time zone
America/Los_Angeles
County
Lake
Metro area
none
Population
159
Coordinates
42.9863, -120.5364
☼ Live from 97640 — Summer Lake, OR

Weather right now

Asking the National Weather Service…

NEXRAD radar
Finding the nearest radar…
Local time: —

Where 97640 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 97640
  • 🔢 Type 97640 into a pocket calculator and turn it upside down: OhgLG — not quite a word, sorry.
  • ➕ As a number, 97,640 = 2 × 2 × 2 × 5 × 2441. Its digits add up to 26, a total 2,038 other ZIP codes share.
  • 💾In binary, the way a computer stores it: 10111110101101000
  • 🏠 Its numerical neighbours: 97639 (Sprague River, OR, 62 mi away) and 97641 (Christmas Valley, OR, 21 mi away).
  • 🔄 Backwards, 97640 becomes 04679 — and that is a real ZIP code: Southwest Harbor, ME, 2,568 miles away.
  • 👥 50 other ZIP codes are made of exactly the same digits (04679, 04769, 04967, 04976, 06479, 06749, …). The farthest-flung twin is 09746 in APO AE, a military post office, 7,614 miles away.
  • 🧭 Farther north than 82% of all ZIP codes, and farther west than 94%.
  • 🎯1,155 miles west of the geographic center of the Lower 48, near Lebanon, Kansas.
  • 🌏 Dig straight through the Earth from 97640 and you would come out at 42.99°S, 59.46°E — 676 miles from Port-aux-Français, French Southern Territories, the nearest big city to that spot.
  • ☀Longest day of the year: 15h 22m of daylight. Shortest: 9h 00m.
  • 📏 At 364.9 square miles of land, 97640 is bigger than 96% of ZIP codes — room for about 277 Central Parks.
🌙 The sky over 97640 today
  • Working out the sun…
🌋 Shake report
  • Checking the USGS…

Source: USGS.

People and housing

Population159This ZIP159
Households68This ZIP68
Housing units129This ZIP129
Median age56.1This ZIP56.1Oregon40.4US 38.9
Median household income$63,636This ZIP$63,636Oregon$83,011US $80,734
Median home value$338,000This ZIP$338,000Oregon$477,600US $332,700
Bachelor's degree or higher11.5%This ZIP11.5%
Mean commute24.0 minThis ZIP24.0 min
Population density0.4 / sq miThis ZIP0.4 / sq mi

Land area

Land area364.86 sq miThis ZIP364.86 sq mi
Water area50.36 sq miThis ZIP50.36 sq mi

ZIP codes near 97640

ZIPCityDistance
97641 Christmas Valley, OR 20.9 mi
97636 Paisley, OR 22.8 mi
97638 Silver Lake, OR 26.9 mi
97735 Fort Rock, OR 36.1 mi
97637 Plush, OR 46.0 mi
97622 Bly, OR 47.6 mi
97630 Lakeview, OR 47.6 mi
97758 Riley, OR 50.2 mi
97621 Beatty, OR 50.4 mi
97712 Brothers, OR 55.1 mi

Find every ZIP code within 10 miles of 97640 →

Questions about this ZIP code

Where is ZIP code 97640?

97640 is in Summer Lake, Oregon, in Lake County. Its published point location is 42.9863, -120.5364.

What county is 97640 in?

97640 lies in Lake County.

What time zone is 97640 in?

97640 uses America/Los_Angeles.

How many people live in 97640?

About 159 people live in ZIP code 97640, in 68 households, at 0.4 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 97640?

$63,636 a year, against $83,011 across Oregon.

What ZIP codes are near 97640?

The closest are 97641 (20.9 mi), 97636 (22.8 mi), 97638 (26.9 mi), 97735 (36.1 mi) and 97637 (46 mi).

Is 97640 a PO Box ZIP code?

97640 is a standard ZIP code. A normal ZIP code with street delivery.

Download or cite

Cite this page

zipcodes.pro. “97640 ZIP Code — Summer Lake, Oregon (Lake County).” Data release 2026-10-12. Retrieved 2026-10-20. https://zipcodes.pro/zip/97640

Machine-readable version of these facts:

curl https://zipcodes.pro/zip/97640.json

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