95431
ZIP 95431 is Eldridge, California, in Sonoma County; area codes 707 and 369; Pacific time.
- Type
- Standard
- Time zone
- America/Los_Angeles
- County
- Sonoma
- Metro area
- Santa Rosa-Petaluma, CA
- Population
- 43
- Coordinates
- 38.3491, -122.5162
Weather right now
Asking the National Weather Service…
Where 95431 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.
- 🔢 Type 95431 into a pocket calculator and turn it upside down: IEhSG — not quite a word, sorry.
- ➕ As a number, 95,431 = 7 × 13633. Its digits add up to 22, a total 2,607 other ZIP codes share.
- 💾In binary, the way a computer stores it:
10111010011000111 - 🏠 Its numerical neighbours: 95430 (Duncans Mills, CA, 30 mi away) and 95432 (Elk, CA, 80 mi away).
- 🔄 Backwards, 95431 becomes 13459 — and that is a real ZIP code: Sharon Springs, NY, 2,500 miles away.
- 👥 46 other ZIP codes are made of exactly the same digits (13459, 13495, 14539, 15349, 15439, 15934, …). The farthest-flung twin is 34951 in Fort Pierce, FL, 2,529 miles away.
- 🧭 Farther south than 56% of all ZIP codes, and farther west than 97%.
- 🎯1,284 miles west of the geographic center of the Lower 48, near Lebanon, Kansas.
- 🌏 Dig straight through the Earth from 95431 and you would come out at 38.35°S, 57.48°E — 987 miles from Port-aux-Français, French Southern Territories, the nearest big city to that spot.
- ☀Longest day of the year: 14h 50m of daylight. Shortest: 9h 29m.
- 📏 At 0.120 square miles of land, 95431 is bigger than 2% of ZIP codes — about 58 football fields.
- Working out the sun…
- Checking the USGS…
Source: USGS.
People and housing
| Population | 43This ZIP43 |
|---|---|
| Households | 0 |
| Housing units | 0 |
| Median age | 57.4This ZIP57.4California37.9US 38.9 |
| Bachelor's degree or higher | 0.0% |
| Population density | 358.3 / sq miThis ZIP358.3 / sq mi |
Business and tax activity
| Business establishments | 4This ZIP4 |
|---|---|
| Employees | 58This ZIP58 |
| Annual payroll | $1,991,000This ZIP$1,991,000 |
Land area
| Land area | 0.12 sq miThis ZIP0.12 sq mi |
|---|---|
| Water area | 0.00 sq mi |
ZIP codes near 95431
| ZIP | City | Distance |
|---|---|---|
95442 | Glen Ellen, CA | 2.0 mi |
95416 | Boyes Hot Springs, CA | 3.0 mi |
95433 | El Verano, CA | 3.8 mi |
95452 | Kenwood, CA | 5.7 mi |
95487 | Vineburg, CA | 6.8 mi |
95476 | Sonoma, CA | 7.1 mi |
94951 | Penngrove, CA | 7.2 mi |
94562 | Oakville, CA | 8.1 mi |
94599 | Yountville, CA | 8.1 mi |
94954 | Petaluma, CA | 8.2 mi |
Find every ZIP code within 10 miles of 95431 →
Questions about this ZIP code
Where is ZIP code 95431?
95431 is in Eldridge, California, in Sonoma County, part of the Santa Rosa-Petaluma, CA metropolitan area. Its published point location is 38.3491, -122.5162.
What county is 95431 in?
95431 lies in Sonoma County.
What area code is 95431?
Eldridge uses area codes 707 and 369, from NANPA's telephone records.
What time zone is 95431 in?
95431 uses America/Los_Angeles.
How many people live in 95431?
About 43 people live in ZIP code 95431, at 358.3 people per square mile. These are American Community Survey 5-year estimates for the ZIP Code Tabulation Area, not a headcount.
What ZIP codes are near 95431?
The closest are 95442 (2 mi), 95416 (3 mi), 95433 (3.8 mi), 95452 (5.7 mi) and 95487 (6.8 mi).
Is 95431 a PO Box ZIP code?
95431 is a standard ZIP code. A normal ZIP code with street delivery.
Download or cite
Cite this page
zipcodes.pro. “95431 ZIP Code — Eldridge, California (Sonoma County).” Data release 2026-10-12. Retrieved 2026-10-20. https://zipcodes.pro/zip/95431
Machine-readable version of these facts:
curl https://zipcodes.pro/zip/95431.jsonUnderlying data is public domain or openly licensed — sources, vintages and licences.