Cheapest places to buy a home in Boise area? See top Ada County ZIP codes
With housing prices on the rise across the United States, would-be homebuyers may be looking for affordable options in Ada County.
In 2025, the average home value in Idaho was $472,273, up 0.7% from 2024, according to real estate website Zillow’s Home Value Index.
TThat’s approximately $45,000 higher than the average home values in the cheapest ZIP code for homebuyers in Ada County.
Single-family houses in Idaho sold at a median price of $495,900 in July, according to real estate website Redfin.
In contrast, the median sales price of an Idaho home was $480,500 in January, according to personal finance website Bankrate.
In Ada County, the average home was valued at $522,794 as of July 31, according to the Zillow Home Value Index. This value is up 0.5% from July 2024.
Rathdrum, Hayden and Coeur d’Alene were the top metropolitan areas in the state with the fastest growing home sale prices in 2025, according to Redfin.
Boise, in comparison, ranked eigth on the list on the list of areas with the fastest growing real estate markets in Idaho,, Redfin said.
If you’re searching for affordable homes in Ada County in 2025, these are the five cheapest ZIP codes to look:
What is the cheapest ZIP code for Ada County homebuyers?
The 83687 ZIP code has some of the most affordable home listings in Ada County, according to Zillow.
The ZIP code, which includes the city of Nampa, covers parts of Ada County and neighboring Canyon County.
As of June, the average home value in the ZIP code was $427,160, according to Zillow’s Home Value Index. The average value dropped 0.3% in the past year.
Residents in the ZIP code have a median household income of $72,294, and about 30% have a bachelor’s degree or higher, according to the U.S. Census Bureau.
In 2023, the median home value in the area was $369,700, while the median rent price was $1,416 per month, U.S. ZIP Codes said. Both have seen exponential increases in the past decade..
Where to find affordable housing in Boise area
The second-cheapest ZIP code in Ada County covers part of southeast Boise as well as Blacks Creek, a popular destination for outdoor activities.
Homes in the 83705 ZIP code see an average value of $427,690, according to the Zillow Home Value Index. This is a 0.8% increase in value in the past year.
About 75% of the households in the area do not have children, according to U.S. ZIP Codes.
The median age of residents in the ZIP code is 35 years old.
The median household income was $62,605 in the 83705 ZIP code, according to Census data.
What are home values in Nampa?
While the 83686 ZIP code is nearly 88 square miles in size, just a small portion lies in Ada County.
Homes in the ZIP code, which covers Nampa, had an average value of $429,756 as of June, according to Zillow.
The median household income in the ZIP code was $83,666, according to Census data, and the median age of residents was 35 years old.
The average home value has dropped by 0.5% in the past year, according to Zillow.
How much are houses worth in Garden City?
The average home value in the 83704 ZIP code, which includes Boise and Garden City. was $430,648 as of June, according to Zillow.
Home values have decreased by 0.5% in the past year, the Zillow Home Value Index said.
Households in this area make a median income of $70,806 annually, according to the Census Bureau. The median age of the population is 38 years old.
As of 2023, the median home value in the ZIP code was $354,400, a sizeable increase from 2015, when area homes were valued at $144,000, according to U.S. ZIP Codes.
U.S. ZIP Codes said that local rent prices have also steady increased over the past decade.
The median rent in the 83704 ZIP code was $1,363 as of 2023, the site said.
What’s the average home value in Kuna?
The 83634 ZIP code covers Kuna and the area west of the city. The average home value was $468,225 as of June, according to Zillow’s Home Value Index.
The median household income is $93,084 in this ZIP code, the highest among the five cheapest ZIP codes in Ada County, according to the census.
Kuna is one of the “fastest growing cities in Idaho,” according to the city’s website.
The majority of the heads of household in the area are between the ages of 35 and 44, according to U.S. ZIP Codes, while area residents’ median age is 34.
Kuna “offers the conveniences of city life, without the traffic or hassle,” the city said on its website, as well as “a wide variety of activities for people of all ages and interests, great schools, excellent health care, outdoor recreation ... and a truly authentic community of people,” the city said on its website.