3742 HIGHWAY 21
Tax & Assessment
Climate Risk
Scores 0–100; higher = greater projected risk.
Property Facts
Assigned SchoolsThe public schools this address is zoned for. Boundaries change, so confirm with the district before you count on it.
District: Basin School District 72
Neighborhood · ZIP 83631These are comparison scores, not percentages. 100 equals the national average, so 150 means about 50% above average.
Index scale: 100 = US average (tick). Lower is better.
Owner Tools
Data by ATTOM. Valuations are automated estimates, not appraisals. Photos from Google Street View and may not depict the current property state.
How this home compares
3742 Highway 21 measured against every home in its neighborhood, its ZIP code and its county, using county assessor records refreshed nightly. A home can stand out in one of those areas and look ordinary in another, because each one holds a different mix of homes.
- Among the largest lots in Idaho City 83631
- Older than 93% of homes in Boise County
How it measures up in Idaho City 83631
The dot is this home. The mark in the middle is the typical home in Idaho City 83631.
Bigger than 51% of homes nearby
Bigger than almost all homes nearby
Newer than 10% of homes nearby
| Measure | This home | Idaho City 83631 | Boise County |
|---|---|---|---|
| Living areabigger than | 640 ft² | 51% of homes | 45% of homes |
| Lot sizebigger than | 78.68 ac | almost all homes | almost all homes |
| Year builtnewer than | 1956 | 10% of homes | 7% of homes |
About 3742 Highway 21
How big is 3742 Highway 21, Idaho City, ID?
3742 Highway 21, Idaho City, ID has 2 bedrooms, 2 bathrooms, 640 square feet of living space and a 78.68-acre lot.
When was 3742 Highway 21, Idaho City, ID built?
3742 Highway 21, Idaho City, ID was built in 1956, making it 70 years old.
What schools serve 3742 Highway 21, Idaho City, ID?
3742 Highway 21, Idaho City, ID is assigned to Idaho City High School (middle), rated C+; Basin Elementary School (elementary), rated B-. All sit in Basin School District 72. Attendance boundaries change — confirm with the district before relying on an assignment.
How does 3742 Highway 21, Idaho City, ID compare to other homes in Idaho City 83631?
Among the 1,104 homes in Idaho City 83631, it is bigger than 51% of them (640 ft² against a typical 640 ft²), its lot is bigger than almost all of them (78.68 ac against a typical 1.39 ac) and it is newer than 10% of them (1956 against a typical 1994). These shares are recounted nightly from the full county assessor record for each area, not from active listings.
What are the property taxes on 3742 Highway 21, Idaho City, ID?
The 2023 property tax bill for 3742 Highway 21, Idaho City, ID was $7,205. The county assessed it at $2,267,543.
More homes on Highway 21
- 4474 Highway 21$485K2 bd · 1 ba · 884 ft² · Sold Sep 2026
- 3865 Highway 21256 ft² · Sold Feb 2026
- 3889 Highway 211 bd · 1 ba · 1,561 ft² · Sold Feb 2026
- 3500 Highway 21$1.1M2 bd · 1.5 ba · 1,526 ft² · Sold Jan 2026
- 4156 Highway 21$302K2 bd · 1 ba · 592 ft² · Sold Nov 2025
- 3823 Highway 21$449K1 bd · 1.8 ba · 876 ft² · Sold Sep 2025
- 3823 Highway 21$504K0.35 ac · Sold Sep 2025
- 4468 Highway 21$433K2 bd · 0.8 ba · 494 ft² · Sold $93K · Aug 2024
- 4521 Highway 21270 ft² · Sold Oct 2023
- 4266 Highway 213 bd · 1 ba · 976 ft² · Sold Jul 2023
- 3764 Highway 211 bd · 1 ba · 775 ft² · Sold Oct 2022
- 4321 Highway 21$289K2 bd · 1 ba · 382 ft² · Sold Aug 2022
Closest homes
More homes in Idaho City 83631
- 118 Prospector Ln$500K3 bd · 2.5 ba · 1,034 ft² · Sold Sep 2026
- 132 Prospector Ln$509K3 bd · 3 ba · 1,362 ft² · Sold $465K · Sep 2026
- 30 White Cap Rd43.15 ac · Sold $2K · Sep 2026
- 11 Golden Age Mine Rd1 bd · 128 ft² · Sold $13K · Sep 2026
- 146.95 ac · Sold $1K · Sep 2026
- 3.75 ac · Sold $220K · Sep 2026
- 15 Mountain Meadow Rd$580K8 bd · 4 ba · 488 ft² · Sold $152K · Sep 2026
- 60 Shaw Gulch Rd$656K1 bd · 1 ba · 1,040 ft² · Sold Sep 2026
- 11 Crescent Cir$845K4 bd · 3 ba · 1,878 ft² · Sold Sep 2026
- 12 ac · Sold Sep 2026
- 9 Crescent Cir4.06 ac · Sold $97K · Aug 2026
- 202 Walulla Rd$306K3 bd · 1.5 ba · 747 ft² · Sold Aug 2026
Assigned schools
Explore the area
See this home in context
Open 3742 Highway 21 on TopHap’s interactive map to compare it against every sale nearby, overlay school zones and flood risk, and run a CMA.
Open in map