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- 226Population
About Castleford
Castleford is a city in Twin Falls County. About 226 people lived here in 2024, by Census estimate. It sits at about 3,900 feet, 21 miles west of Twin Falls in a straight line.
Places listed for this area include Balanced Rock and Devils Washboard Falls.
Moving to Castleford
Start with homes, jobs and local services in and around Castleford.
Cost of living
Twin Falls has no separate 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- Homes on the mapSearch homes for sale near town
- Public schools1 public school
- DMV and utilitiesCounty offices, and gas service only where a utility names this town
- Local services1 local business
- Moving to Idaho checklistDriver's license, vehicle registration, voter registration and more, from official Idaho sources
Public schools in Castleford
All 1District, enrollment, and students per teacher from the federal 2024-25 directory. No ratings.
- Castleford School
Castleford District · PK-12
274 students · 13 students per teacher
Services for Castleford
All servicesDMV counters are the county offices. A gas utility appears only when its public list names Castleford.
- Twin Falls · Vehicles
630 Addison Ave W, Twin Falls, ID 83301 #1201 PO Box 248
· Mon. - Fri. 8:00 AM - 4:30 PM
- Buhl · Licenses and vehicles
330 Broadway Ave N Buhl, ID 83316
· Mon. - Fri. 8:00 AM - 4:30 PM
- Twin Falls · Driver's licenses
630 Addison Ave W #1212 Twin Falls, ID 83301 Mailing Address: PO Box AE Twin Falls, ID 833303
· Mon. - Fri. 8:00 AM - 5:00 PM
No natural gas utility on the official town lists names Castleford.
Allergy ratings in Castleford
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 AprilEarly-summer grass
Late May to July
High
Rating: High, on a scale of Low, Moderate, High, Very High. Late May to early JulyFall weeds and sagebrush
August to October
High
Rating: High, on a scale of Low, Moderate, High, Very High. Peaks in SeptemberWildfire smoke
Mostly July to September
Moderate
Rating: Moderate, on a scale of Low, Moderate, High. 3.4 days a year with air quality over 100. Worst year 7 (2021).
Counted nearby. Pollen ratings come from the Twin Falls station in the Magic Valley, 21 miles away.
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. Twin Falls 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
- National Allergy Bureau daily pollen counts, CDC release 2003 to 2024 (Boise, Twin Falls, Coeur d'Alene stations)
- NAB pollen level bands (grains per cubic meter)
- The Allergy Group, Boise: Southwest Idaho pollen seasons (clinic counts since 1971)
- EPA AirData: annual AQI by county
Today
Pollen data through 2003-2024, smoke data 2021-2025. Checked 2026-10-03.
Map of Castleford
Parks, new home communities, homes for sale and stays listed in town. Select a pin to open it.
- Castleford
- Park
Parks in Castleford
1 named park on OpenStreetMap.
- Balanced Rock State Park
Parks, trails and things to do
All of IdahoPlaces in and around Castleford, nearest first: everything tied to Castleford plus anything within 15 miles of town.
Things to do
Waterfalls
- Devils Washboard Fallswaterfall · near Buhl11 mi
Attractions
- Balanced Rockattraction4.8 mi
- Box Canyon Springs Nature Preserveattraction · near Wendell13 mi
- Blue Heart Spingsattraction · near Wendell13 mi
Parks
- Balanced Rockrecreation area12 mi
- 4.8 mi
- John B. Crawford Parknear Buhl7.4 mi
- Eastman Parknear Buhl8.0 mi
- Cedar Draw Parknear Filer13 mi
- Lower Salmon Falls Creek Wilderness Study Areanature reserve · near Hollister13 mi
- 13 mi
- Box Canyon Springs Preservenear Wendell13 mi
- Filer Community Parknear Filer14 mi
- Thousand Springs State Parknear Buhl14 mi
- Twin Falls County Fairgroundnear Filer14 mi
Trails
- Scotch Trail4.1 mi long24 mi
- Malat Trail1.8 mi long25 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.
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Moving checklist: setting up a home in Castleford
Shop room by room for the new place. Discounts show only when a store has a real sale.
Thinking about moving to Idaho?
Answer a few short questions. You get a shortlist of towns, homes for sale, jobs and things to do, built from what is listed on Treasure Idaho.
Builders around Castleford
- Wolverton HomesTwin Falls CountyWorks in Twin Falls County
- Balkan Homes and DesignTwin Falls CountyWorks in Twin Falls County
- Bates HomesTwin Falls CountyWorks in Twin Falls County
- Better Homes ConstructionTwin Falls CountyWorks in Twin Falls County
- Blue Lakes Building CompanyTwin Falls CountyWorks in Twin Falls County
- Brehm Custom HomesCustom HomesWorks in Twin Falls County
Stays near Castleford
- King SuitesHome · sleeps 10Twin Falls · 20 mi away
- Jolly Rancher SuiteTownhome · sleeps 3Twin Falls · 20 mi away
- Garden HomeHome · sleeps 6Twin Falls · 20 mi away
- Sunterra HouseHome · sleeps 6Twin Falls · 20 mi away
- The Jolly RancherTownhome · sleeps 6Twin Falls · 20 mi away
- River View RetreatHome · sleeps 4 · 1 bdTwin Falls · 21 mi away
