Population97,539 (July 1, 2025 Census estimate)
A Southern Regional Center and Its Wider Setting
Twin Falls County, IdahoTwin Falls is both the name of the county and its seat, a distinction worth keeping in mind when exploring places beyond the city’s municipal boundary. The county’s formation belongs to Idaho’s early twentieth-century development. Its administrative identity provides one way to trace the relationship between a growing city and surrounding communities. The city of Twin Falls supplies a practical starting point, but a county visit can extend beyond its urban center.
Twin Falls County at a Glance
Population97,539 (July 1, 2025 Census estimate)
County SeatTwin Falls
StateIdaho
Established1907
ZIP CodesVary by address
Total Area, Including Water1,928.687 square miles, including water (2020 Census geography)
Road InformationState transportation resources below
Area Codes208, 986
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Meet Local Businesses
Support the businesses that help make our communities thrive. From family-owned shops and restaurants to trusted local services, discover businesses worth visiting throughout the county.
Discover Twin Falls County
Twin Falls County
The county's formation belongs to Idaho's early twentieth-century development. Its administrative identity provides one way to trace the relationship between a growing city and surrounding communities. County government was established in 1907, during the development of southern Idaho's irrigated agricultural communities. The city of Twin Falls became the county seat. The Snake River landscape gives the area its wider geographic frame, while the distinction between city and county helps place civic growth within a much larger rural setting.
Use Twin Falls as an orientation point, then check whether additional destinations fall inside the county before combining regional attractions into a locally focused itinerary. The city of Twin Falls supplies a practical starting point, but a county visit can extend beyond its urban center. Think of the Snake River landscape and the surrounding communities as separate parts of the experience. Choosing individual destinations keeps the broad southern Idaho setting from becoming an unmanageable itinerary.
What Shapes Us
Southern Idaho
Twin Falls is both the name of the county and its seat, a distinction worth keeping in mind when exploring places beyond the city's municipal boundary.
County and City
The county's formation belongs to Idaho's early twentieth-century development. Its administrative identity provides one way to trace the relationship between a growing city and surrounding communities.
A Wider Landscape
Use Twin Falls as an orientation point, then check whether additional destinations fall inside the county before combining regional attractions into a locally focused itinerary.
Discover the country beyond the city and canyon
A Closer Look
Twin Falls County
Places and perspectives from Twin Falls County
Idaho Capital Sun
With 2 weeks until midterms, analysts say Dems still on track to win US House majority
Democrats have used President Donald Trump’s unpopularity to expand the midterm map, and analysts project the party carries…
Read the Story Oct 20, 2026 • 2 min read
Around Twin Falls County
Stories from every corner of Twin Falls County.
With 2 weeks until midterms, analysts say Dems still on track to win US House majority
Democrats have used President Donald Trump’s unpopularity to expand the midterm map, and analysts project the party carries…
Oct 20, 2026 • 2 min read
Ukrainians and Sudanese with temporary legal status will keep protections for now
WASHINGTON — Immigrants living in the United States with humanitarian status from Ukraine and Sudan will retain their…
Oct 20, 2026 • 2 min read
Idaho legislator selected to serve as state’s next US attorney after Davis retires
An Idaho legislator has been tapped as the state’s next U.S. attorney for the District of Idaho after…
Oct 19, 2026 • 2 min read
The race for Idaho’s top election official, the secretary of state, is a rematch
In the race for Idaho’s top election official, two familiar names are headed to the ballot. Democratic challenger…
Oct 19, 2026 • 2 min read
Friends of Minidoka symposium connects Japanese-American incarceration to immigration debate
The Friends of Minidoka nonprofit will host its 2026 symposium, which will feature a film screening, legal discussion…
Oct 19, 2026 • 2 min read
Shop - Dine - Discover
Meet Local Businesses
Support the businesses that help make our communities thrive. From family-owned shops and restaurants to trusted local services, discover businesses worth visiting throughout the county.
County Resources
Find the Right Local Connection
Start with the organization responsible for the service you need. Follow its official link for current requirements, office locations and availability.
County photographs from Wikimedia Commons; images may be cropped for display.
- Shoshone Falls, Idaho — Frank Schulenburg. CC BY-SA 4.0. Own work
- At a distance, Shoshone falls, Idaho 4 — Bobjgalindo. CC BY-SA 4.0. Own work
Idaho statewide resources
Idaho Government
Use the official Idaho.gov portal to find state agencies, services, licenses, public information, directories, and online government resources. It is the main statewide starting point for residents, businesses, and visitors seeking official Idaho information.
Schools
Public school contacts
Selected local schools from the NCES 2024-2025 directory. Contact the school or district to confirm enrollment, attendance boundaries and current services; this is not a complete school list.
Popplewell Elementary School – Elementary; grades PK-05. 200 NORTH 6TH AVENUE, BUHL, ID 83316. 208-543-8225.
Castleford School – Other; grades PK-12. 500 MAIN STREET, CASTLEFORD, ID 83321. 208-537-6511.
Filer Elementary School – Elementary; grades PK-03. 700 STEVENS AVENUE, FILER, ID 83328. 208-326-4369.
Gem Prep: Twin Falls – Elementary; grades KG-08. 151 FEDERATION ROAD, TWIN FALLS, ID 83301. 208-735-5646.
Hansen Elementary School – Elementary; grades PK-06. 350 WALNUT STREET, HANSEN, ID 83334. 208-423-5475.
Kimberly Elementary School – Elementary; grades KG-05. 311 MAIN STREET SOUTH, KIMBERLY, ID 83341. 208-423-4170.
Murtaugh Schools – Other; grades PK-12. 500 WEST BOYD STREET, MURTAUGH, ID 83344. 208-432-5451.
Hospitals
Local hospital contacts
Facility contacts from the CMS Hospital General Information directory, updated July 22, 2026. Contact the facility directly to confirm current services and appointment arrangements.
St Lukes Magic Valley Medical Center – Acute Care Hospitals. 801 Pole Line Road West, Twin Falls, ID 83301. 208-814-1000.
Idaho statewide resources
Public Safety
The Idaho State Police provides statewide patrol, investigations, forensic services, criminal-information resources, highway safety support, and other public-safety services. County sheriffs and municipal police departments handle many local law-enforcement matters.
Idaho statewide resources
Emergency Services
The Idaho Office of Emergency Management coordinates statewide preparedness, disaster response, recovery, mitigation, and emergency planning. Residents should also follow county and local emergency-management agencies for evacuation notices, wildfire information, flooding, severe-weather alerts, and community-specific instructions.
Idaho statewide resources
State Parks
The Idaho Department of Parks and Recreation provides official information about state parks, campgrounds, trails, boating, reservations, permits, passes, and outdoor recreation. Check each destination’s official page for current conditions, closures, fees, and reservation requirements.
Idaho statewide resources
Trails
Idaho State Parks, national forests, Bureau of Land Management lands, cities, counties, and local organizations maintain hiking, biking, equestrian, paddling, and motorized trails throughout the state. Use official land-management resources and verify weather, wildfire conditions, snow, seasonal closures, permits, and trail access before heading out.
Idaho statewide resources
Utilities
The Idaho Public Utilities Commission regulates investor-owned electric, natural gas, telecommunications, water, and other utility services under its jurisdiction. Municipal utilities, cooperatives, and other providers may operate differently, so verify the provider serving the exact address and community.
Libraries
Local library contacts
Locations and public phone numbers are from the IMLS FY2024 Public Libraries Survey. Call the branch to confirm current hours and services before visiting.
Buhl Public – 215 Broadway N, Buhl, ID 83316. 208-543-6500.
Filer Public – 219 Main St, Filer, ID 83328. 208-326-4143.
Hansen District – 120 W Maple Ave, Hansen, ID 83334. 208-423-4122.
Kimberly Public – 120 Madison St W, Kimberly, ID 83341. 208-423-4556.
Twin Falls Public – 201 Fourth Ave E, Twin Falls, ID 83301. 208-733-2964.
Idaho statewide resources
Courts
The Idaho Judicial Branch provides court information, forms, self-help resources, opinions, rules, and links to district and magistrate courts across the state. Verify the correct court and jurisdiction before filing documents or relying on deadlines.
DMV
Idaho — Driver’s License and ID Required Documents
Idaho statewide resources
Transportation
The Idaho Transportation Department manages state highways and provides information on roads, bridges, construction, traffic, aviation, public transportation, highway safety, and travel conditions. Use official ITD and Idaho 511 resources for current road information.
Postal Services
USPS location finder — Search by street address, city or ZIP Code for nearby post offices, collection boxes and available services.
USPS ZIP Code lookup — Find the mailing ZIP Code for a specific street address.
USPS Hold Mail — Arrange a temporary mail hold and review identity-verification requirements.
USPS change of address and forwarding — Review forwarding options and submit an address-change request through USPS.
USPS package pickup — Check pickup availability for your address and schedule eligible shipments.
Veterans
National services available to local residents
VA accredited representatives — Find help with VA claims and benefit applications.
VA health care applications — Review application options and supporting information.
VA disability claims — Find the official steps for submitting a disability claim.
GI Bill and education benefits — Review how to apply for VA education benefits.
Veteran career and employment support — Explore VA employment, training and career assistance.
Employment
National services available to local residents
USAJOBS federal employment — Search federal openings by location and occupation.
Apprenticeship Finder — Search apprenticeship opportunities by location and occupation.
My Next Move career exploration — Explore occupations, industries and career interests.
Government job-training resources — Find routes to state training programs and support for different job seekers.
Unemployment benefit guidance — Find your state program and its application and eligibility information.
Get to Know Twin Falls County
Useful answers for residents, visitors and anyone planning their next step.
Local Questions
Twin Falls County Questions, Answered
Explore practical details about the county and the organizations that serve it.
97,539 (July 1, 2025 Census estimate). This is a dated Census Bureau estimate, rather than a live resident count.
1,928.687 square miles, including water (2020 Census geography). The total combines land and water area.
Start with these official Idaho resources: Vehicle Registration; Driver’s License and ID Required Documents; Report Vehicle Insurance. Choose the page for the service you need, then check its office or online instructions before making a trip. These links cover state services; they do not establish that every transaction is available at a county office.
Use USPS ZIP Code Lookup for the mailing ZIP Code of a specific street address. Use the USPS location finder to search for nearby postal facilities and available services. An address lookup is more useful for mailing than assuming the entire county shares one ZIP Code.
The VA explains how to find and appoint an accredited representative for benefit claims. Contact a representative to confirm availability before appointing them. For education benefits, use the GI Bill application guidance. These are national VA services available to eligible local residents, rather than a listing of county offices.
Search USAJOBS for federal positions and the Apprenticeship Finder for apprenticeship opportunities, using location filters to narrow the results. USAGov job-training guidance points to training programs and state resources. Check each listing for current availability, eligibility and application instructions; a search result does not guarantee an opening in the county.
The county's formation belongs to Idaho's early twentieth-century development. Its administrative identity provides one way to trace the relationship between a growing city and surrounding communities. County government was established in 1907, during the development of southern Idaho's irrigated agricultural communities. The city of Twin Falls became the county seat. The Snake River landscape gives the area its wider geographic frame, while the distinction between city and county helps place civic growth within a much larger rural setting.
Use Twin Falls as an orientation point, then check whether additional destinations fall inside the county before combining regional attractions into a locally focused itinerary. The city of Twin Falls supplies a practical starting point, but a county visit can extend beyond its urban center. Think of the Snake River landscape and the surrounding communities as separate parts of the experience. Choosing individual destinations keeps the broad southern Idaho setting from becoming an unmanageable itinerary.
The 2020 Census geography figures record 1,921.710 square miles of land and 6.977 square miles of water in Twin Falls County. The county’s total area includes both. These are geographic measurements for that Census vintage, not a measurement of current water levels or public recreation access.
In the Census Bureau’s 2025 estimate series, Twin Falls County had an estimated 90,365 residents on July 1, 2020, and 97,539 on July 1, 2025. Over that interval, the estimated population increased by 7,174 residents, or about 7.9%. Both figures come from the same estimate vintage, which revises earlier years for a consistent comparison.
Twin Falls is the county seat of Twin Falls County, Idaho.
Shop - Dine - Discover
Meet Local Businesses
Support the businesses that help make our communities thrive. From family-owned shops and restaurants to trusted local services, discover businesses worth visiting throughout the county.
My Local Guide
Find Something Fun
Make Time to ExploreBrowse local places by the kind of day you have in mind.
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