Only 5 of the 59 Idaho towns we compare have a lower rent at the middle of the market than Firth. Firth’s trail network density is 7.8 miles per square mile, above both Idaho’s towns (0.8) and U.S. towns (0.4). Firth River Bottoms, at 57 acres with 4.1 miles of trail, is the biggest park or preserve. Firth has fewer than 1,000 residents, too few for fair grades; the figures below are still real.

Small town

545 people, and everyone knows the way

In a town this size, neighbors are the best guide. Ask them anything.

Nearby towns

Basalt · 1 mi Shelley · 6 mi Blackfoot · 11 mi Idaho Falls · 15 mi Ammon · 16 mi Iona · 20 mi

Firth ID Welcome, 2008

Firth’s story

121 years in pictures

Census counts: 236 in 1930, 517 in 2020. The archive holds 4 old photos and papers going back to 2004 and 2 maps from 1955 on.

1905Firth is settled

Explore the history →

Getting set up

Moving to Firth: who provides what

Who provides power, water and the rest in Firth, and how to reach them.

The full setup list →

WaterCity of Firth water systemNo health-based violations in 5 years · EPAEPA

Internet8 providers100% of addresses get 100/20 MbpsFCC

Trash & dumpNot on file yetWe don’t have Firth’s trash rules yet

SchoolsFirth School District 59Which school depends on your addressNCES

Register to voteOnlineIn Idaho you can register online until 11 days before Election Day, in person up to and including Election Day, or by mail (received 11 days before).vote.gov

Who runs elections hereBingham County ClerkBingham County; contacts on the Handbook page.FVAP, Aug 2023

ZIP code8323683236 100%Census 2020

EPA SDWIS (Oct 9, 2026) · HIFLD + EIA-861 2025 · Census 2020 ZCTAs · NCES 2024–25 · registration: vote.gov, updated Sep 12, 2025.

The data

Ordered by what stands out in Firth.

Natural hazards

High risk in Firth, with inland flooding at the top

For Firth, the FEMA risk score is 73 of 100. FEMA puts 33% of the town’s expected hazard losses down to inland flooding, and 24% to cold waves.

73risk score of 100

FEMA risk score

Inland floodingCold wavesEarthquakes

Full pageFirth’s hazards pageOpen the page

What it facesHigh risk Flood claims0 paid flood claims · No paid flood claims on record Past disasters5 disaster declarations · Declared for the county Get ready0.5 events a year, on average · Ready for inland flooding

FEMA National Risk Index · OpenFEMA

Schools

The schools Firth’s kids attend

Of its 3 schools, two are listed below, each with the reason. The Firth District runs its public schools. The largest public high school is Firth High School, with 305 students.

School	Level	Students	Letter
A W Johnson Elementary SchoolLargest public elementary schoolGrades PK–4	Grades PK–4	256	B⁻
Firth High SchoolLargest public high schoolGrades 9–12	Grades 9–12	305	A⁻

Full pageFirth’s schools pageOpen the page

The districtsFIRTH DISTRICT Every school3 schools · Firth High School Questions“Are Firth’s schools good?”

NCES · EDFacts

Climate

Firth: four seasons and pleasant summers

Expect July afternoons of 87° and January nights of 14°, with about 15 inches of snow a winter.

15″snow a winter

Typical low → high °F

Winter16–33°

Spring33–58°

Summer50–83°

Fall33–60°

Oct 3

typical first frost

May 5

typical last frost

+1.5°

vs. the 20th-century average

Full pageFirth’s climate pageOpen the page

A year of weatherJuly highs 87°, January lows 14°Rain & snow15″ of snow a winter · 11 inches of rain and snow a year Heating & coolingMostly a heating bill Then and now+1.5° vs. the 20th century · Warmer than the 20th-century average

NOAA U.S. Climate Normals, 1991–2020

Work & commute

About one in three of Firth’s working residents commute to Idaho Falls

Half the trips to work are shorter than 16 miles. Firth had 187 jobs in 2023, up 61 from 2013. Just 7% of the town’s working residents have a job in town. The top destinations are Idaho Falls (33%), Shelley (5%) and Pocatello (4%).

7%work in town

	Firth	Idaho towns	U.S. towns
Working residents who work in town	7.5%	22%	8%
Median household income	$56,000	$67,000	$80,000
Average trip to work	24 minutes	20 minutes	25 minutes
Below the poverty line	12%	12%	9.6%

Where working residents work

In Firth7%

Idaho Falls33%

Shelley5%

Pocatello4%

Boise City4%

16 mi

median commute distance

187

jobs based in Firth

Balanced

jobs vs. working residents

Full pageFirth’s work & commute pageOpen the page

The jobs here187 jobs based here · Balanced Where people work7% work in Firth Commute times24 minutes · The average commute How far they goHalf commute less than 16 miles

Census LEHD 2023 · ACS

Health

How healthy Firth is

For adults in Firth, the share who binge drink is 14%. This Idaho town does better than the Idaho average on 1 of 32 CDC measures and worse on 2. Among 60 Idaho towns, just 3 have a higher share of adults who have obesity than Firth.