HousingHandbookReference data

U.S. ZIP Code · ID83670

Gem County · Boise City, ID

Typical home value

$638,908[1]

Zillow Home Value Index, as of April 2026

Appreciation

1-year
-0.5%
5-year / yr
+4.1%
10-year / yr

Relative price

vs U.S.
+124.9%
vs metro
+31.3%
vs state
+47.4%
ZIP 83670 location in ID
Location of ZIP 83670 in ID

Price history

Zillow Home Value Index — monthly, smoothed and seasonally adjusted.

The typical home in 83670 is worth $638,908 — 31.3% above the Boise City, ID median. Over the past year, values have fallen 0.5%. The effective property tax rate is 0.3%.

#Rent & investment

Typical asking rent, and the returns it implies at the current home value.

Monthly rent
[2]
Gross yield
[2]
Cap rate
[2]

#Property tax

Effective rate — total real estate taxes paid relative to total home value.

Effective tax rate
0.3%[3]
Typical annual tax
$1,693[3]

#Climate risk

FEMA National Risk Index ratings for Gem County. "Not Applicable" means the hazard does not threaten the county.

Overall risk
Very Low[4]
Riverine flood
Relatively Low
Coastal flood
Not Applicable
Wildfire
Relatively Moderate
Drought
Very Low
Heat wave
Relatively Low
Hurricane
Not Applicable
Tornado
Very Low
Earthquake
Very Low
Winter weather
Relatively Low

#Who lives here

Population
752[3]
Median household income
$91,685[3]

#Migration

Household moves in and out of Gem County over a year, from IRS tax-return data.

Net migration
+138[5]
Moved in
733
Moved out
595

Schools

Open public schools in this ZIP, from the NCES Common Core of Data.

Public schools
1
Elementary
1
Middle
0
High
0
  • SWEET MONTOUR ELEMENTARY SCHOOL

    Elementary · Grades K–5 · EMMETT INDEPENDENT DISTRICT

    44 students

Run the numbers

Interactive calculators pre-filled with this ZIP's typical home value, rent, and property-tax rate. Edit any field to recompute.

Gross yield
Net yield (after ~40% expenses)
Annual rent

Gross and net yield are estimates based on the inputs and the selected expense ratio. Actual income and expenses will vary by property and market. Not investment advice.

Monthly payment$3,231
Loan principal$511,126
Down payment$127,782
Total interest paid$651,914

Estimated monthly payments include principal and interest only. Actual costs will include property tax, insurance, possibly PMI, and HOA fees not modeled here. Loan terms shown are estimates; consult a licensed lender for current rates and qualification.

Own : rent ratio
Monthly cost to own$3,907
Monthly rent

This calculator projects multi-year scenarios based on assumptions about appreciation, rent growth, and investment returns — none of which are guaranteed. Actual outcomes depend on variables this tool cannot know. Not financial or real estate advice.

#Metro ranking

Where this ZIP sits among others in its metro area.

Appreciation
69th percentile[1]
Rental yield
[2]
Property tax
3rd percentile[3]

Rankings

Top-10 lists this ZIP code appears on.

Frequently asked

How much is a home worth in ZIP code 83670?
The typical home in 83670 is worth $638,908, based on the Zillow Home Value Index.
Are home values rising in 83670?
Home values in 83670 are down 0.5% over the past year, and up 4.1% a year over five years.
What is the property tax rate in 83670?
The effective property tax rate in 83670 is 0.3% — roughly $1,693 a year on a typical home.
Who lives in 83670?
ZIP code 83670 has a population of 752 and a median household income of $91,685.

#Comparable ZIPs

Same metro, nearest typical home value. Each card shows the comparable ZIP's headline numbers so you can scan at a glance.

  • Melba, ID

    Typical home
    $661,875
    Gross yield
  • Star, ID

    Typical home
    $581,066
    Gross yield
    4.8%
  • Garden City, ID

    Typical home
    $562,194
    Gross yield
    4.0%
  • Wilder, ID

    Typical home
    $547,982
    Gross yield
  • Garden Valley CDP, ID

    Typical home
    $547,348
    Gross yield
  • Bruneau CDP, ID

    Typical home
    $543,914
    Gross yield

Want similar ZIPs from outside this metro? Browse nationally similar ZIPs →

Compare ZIPs

Pit ZIP 83670 against any other ZIP — full side-by-side table.

Compare 83670

#Jump to section