Farnum, Idaho

Farnum: situated at an elevation of 5502 feet in Fremont County, this area lies on the Upper Snake River Plain southeast of St. Anthony.

About

Farnum is a city located in the county of Fremont in the U.S. state of Idaho.

Quick Facts about Farnum

State Idaho (United States)
County Fremont County
Latitude & Longitude 43.9985,-111.4097
Time Zone America/Boise
Local time 12:44:23 (6th November 2026)
Weather 28℉ Areas Of Fog 7-days weather

Geography

Farnum is located at 43°59'55"N 111°24'35"W (43.9985200, -111.4096800).

Farnum map

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Weather

28°F
Areas Of Fog
3 mph ENE Tonight

Areas of fog between 9pm and 5am. Partly cloudy. Low around 28, with temperatures rising to around 30 overnight. East northeast wind around 3 mph.

7-Day Forecast

Nearby Schools and Colleges

Schools and campuses linked to Farnum, ID. Select a name to open its map and contact details.

Code Name City ZIP
142522 Brigham Young University-Idaho Rexburg (ID) 83460-1690

Closest post offices linked to Farnum.

Post Office Name City ZIP
Ashton Post Office Ashton (ID) 83420

Other cities in Fremont County

Cities, towns, neighborhoods & other populated places in Fremont County , ID.

City Name Population Title
Saint Anthony 3,553 City in and county seat of Fremont County, Idaho, United States
Ashton 1,050 City in Fremont County, Idaho, United States