Where is Ketchum, Idaho?

Ketchum is in Blaine County, Idaho. Nearby towns include Sun Valley (1.3 mi), Hailey (11 mi), Bellevue (16 mi).

What is the population of Ketchum, Idaho?

Ketchum has a population of about 3,609 (U.S. Census).

Are there jobs in Ketchum, Idaho?

There are 23 open jobs listed in Ketchum on Treasure Idaho, from 4 local employers.

What schools are in Ketchum, Idaho?

Ketchum has 1 operating public school in Blaine County District, including Ernest Hemingway Steam School.

What parks are in Ketchum, Idaho?

Ketchum has 6 parks, including Forest Service Park, Ketchum Bike Park, Knob Hill Natural Area, Little Park.

Central Idaho

Ketchum, Idaho

Blaine County3,609 people

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3,609Population

About Ketchum

Ketchum is a city in Blaine County. About 3,609 people lived here in 2024, by Census estimate. It sits at about 5,800 feet, 78 miles north of Twin Falls in a straight line.

Places listed for this area include Sun Valley Resort (Bald Mountain and Dollar Mountain) and Sun Valley Museum of Art.

Moving to Ketchum

Start with homes, jobs and local services in and around Ketchum.

Cost of living

Ketchum is outside the Idaho metros with a 2024 federal price figure, so this uses the Idaho statewide level. A basket that costs $100 in the U.S. costs $95.49 here, under the U.S. average by 4.5%.

Open the calculator

Public schools in Ketchum

All 1

District, enrollment, and students per teacher from the federal 2024-25 directory. No ratings.

Ernest Hemingway Steam School
Blaine County District · PK-8
431 students · 11.6 students per teacher

Services for Ketchum

All services

DMV counters are the county offices. A gas utility appears only when its public list names Ketchum.

Hailey · Vehicles
219 1st Avenue Hailey, ID 83333 Suite 103
· Mon. - Thurs. 8:00 AM - 6:00 PM
Hailey · Driver's licenses
219 1st Avenue S Hailey, ID 83333 Suite 109
· Mon. - Thurs. 8:00 AM - 6:00 PM

Intermountain Gas · natural gas, on the company's town list. A main is not guaranteed at every address.

Allergy ratings in Ketchum

What a typical year looks like: Low, Moderate or High for each pollen season, plus wildfire smoke. Typical, general guidance. It is not medical advice. Pollen and smoke change with the weather every year, and what bothers you depends on what you are allergic to. See an allergist for testing.

Spring trees
March to June
Moderate
Rating: Moderate, on a scale of Low, Moderate, High, Very High. Peaks in April
Early-summer grass
Late May to July
High
Rating: High, on a scale of Low, Moderate, High, Very High. Late May to early July
Fall weeds and sagebrush
August to October
High
Rating: High, on a scale of Low, Moderate, High, Very High. Peaks in September
Wildfire smoke
Mostly July to September
Moderate
Rating: Moderate, on a scale of Low, Moderate, High. 4.2 days a year with air quality over 100. Worst year 10 (2021).

Regional rating. Ketchum has no pollen counter. These pollen ratings come from the Twin Falls station in the Magic Valley, 77 miles away. Ketchum sits well above that station, so timing and levels can differ.

How these ratings are worked out

Pollen is rated on the National Allergy Bureau bands for the grains of pollen in a cubic meter of air. Trees: Low under 15, Moderate 15 to 89, High 90 to 1,499. Weeds: Low under 10, Moderate 10 to 49, High 50 to 499. Grass: Low under 5, Moderate 5 to 19, High 20 to 199. The band is the one reached on the busiest quarter of counted days. A rating is typical, not a forecast: one wet or windy year can move it.

Spring trees, Moderate. Twin Falls NAB station, 757 counted days in 2003 to 2024: on the busiest quarter of days the tree count was 54 grains per cubic meter or more, which the NAB bands call Moderate. On the busiest tenth of days it was 125 or more.

Early-summer grass, High. No grass counts are published for Twin Falls. The Treasure Valley figure is used: the same Snake River Plain, and Twin Falls tree and weed counts match Boise's pattern. The NAB grass bands: Low under 5, Moderate 5 to 19, High 20 to 199, Very High 200 or more grains per cubic meter.

Fall weeds and sagebrush, High. Twin Falls NAB station, 536 counted days in 2004 to 2023: on the busiest quarter of days the weed count was 71 grains per cubic meter or more, which the NAB bands call High. On the busiest tenth of days it was 114 or more.

Wildfire smoke, Moderate. The average number of days a year the EPA's air quality index passed 100 ("unhealthy for sensitive groups" or worse), 2021-2025. Under 3 days is Low, 3 to 9 Moderate, 10 or more High. That grouping is ours, not the EPA's. Blaine County has its own EPA air monitor. The count includes any cause, but across Idaho's monitors 86% of those days fell in July to September and 94% were fine particles (PM2.5), which is what wildfire smoke is made of (570 county-days, 2021-2025).

Not rated. Mold: no published mold spore counts for Idaho towns are in the data used, so there is no mold rating. House dust, pets and food allergies are outside this rating.

Sources

Today

Pollen data through 2003-2024, smoke data 2021-2025. Checked 2026-10-03.

Map of Ketchum

Parks, new home communities, homes for sale and stays listed in town. Select a pin to open it.

Ketchum
Park
Stays

Parks in Ketchum

6 named parks on OpenStreetMap.

Forest Service Park
Ketchum Bike Park
Knob Hill Natural Area
Little Park
Rotary Park
Town Square

Parks, trails and things to do

All of Idaho

Places in and around Ketchum, nearest first: everything tied to Ketchum plus anything within 15 miles of town.

Things to do

Hot springs

Guyer Hot Springshot spring
2.3 mi
Warfield Hot Springhot spring
6.8 mi
Easley Hot Springs Resorthot spring · near Sun Valley
11 mi
Hailey Hot Springshot spring · near Hailey
12 mi

Lakes

Big Fall Creek Lakelake · near Sun Valley
15 mi

Peaks

Cobb Peakpeak · near Sun Valley
12 mi
Hyndman Peakpeak · near Sun Valley
13 mi
Old Hyndman Peakpeak · near Sun Valley
13 mi
Dollarhide Mountainpeak
17 mi

Ski areas

Sun Valley Resort (Bald Mountain and Dollar Mountain)ski area
1.9 mi
Rotarun Ski Areaski area · near Hailey
13 mi

Museums

Sun Valley Museum of Artmuseum
0.1 mi

Historic sites

Wood River Trailshistoric site
2.0 mi
Boulder Mountain Goat Interpretive Sitehistoric site · near Sun Valley
14 mi

Day use and picnic areas

Lake Creek Lakes Picnic Arearecreation site · near Sun Valley
6.5 mi
Sawtooth National Recreation Arearecreation site · near Sun Valley
8.0 mi

Parks (nearest 12 of 22)

Town Square
0.1 mi
Forest Service Park
0.2 mi
Little Park
0.2 mi
Knob Hill Natural Area
0.3 mi
Ketchum Bike Park
0.3 mi
Atkinson Park
0.4 mi
Rotary Park
0.6 mi
Hemingway/Northwood Natural Areanature reserve
0.8 mi
Sun Peak Picinic Areanear Sun Valley
2.2 mi
Sawtooth Botanical Gardengarden
3.8 mi
Old Cutters Parknear Hailey
11 mi
Hop Porter Parknear Hailey
11 mi

Trails (nearest 12 of 126)

Pale Rider1 mi long · difficult bike trail
1.0 mi
River Run Trail3.4 mi long · intermediate bike trail
1.0 mi
Valley View Loop1.8 mi long · near Sun Valley
1.2 mi
Mindbender3.1 mi long · intermediate bike trail
1.3 mi
Prospect Hill Loop1.2 mi long · near Sun Valley
1.5 mi
White Cloud Loop2.6 mi long · near Sun Valley
1.6 mi
Sun Valley Trail5.9 mi long
1.7 mi
Big Wood Connector0.7 mi long · easy bike trail · near Sun Valley
1.8 mi
Saddle Up2.7 mi long · intermediate bike trail
2.0 mi
Adams-Lake Creek Connector #3211.5 mi long · intermediate bike trail · near Sun Valley
2.1 mi
Old Adams Gulch Road -Trail #1462 mi long · difficult bike trail · near Sun Valley
2.1 mi
Shadyside Trail #3171.7 mi long · intermediate bike trail · near Sun Valley
2.1 mi

Distances are straight-line miles. From state and federal agency pages, the USGS place names list and OpenStreetMap contributors. Checked October 2, 2026. Check the official page for hours, fees and closures before you go.