Department of Numbers

Ada County Idaho Residential Rent and Rental Statistics

The median monthly gross residential rent in Ada County ID was $942 in 2017 according to the Census ACS survey.1 Average gross rent in Ada County was $957 in 2017. The median rent more accurately depicts rental rates in the middle of the distribution of rents and is thus preferred in the analysis below. 2018 Ada County median and average rent data will be released in September of 2019.

Data is also available below for Ada County rental vacancy rates, Ada County rent as a percent of median income and the fraction of renters in Ada County.

Show dollars as: Nominal Real

Real Gross Rent in Ada County Idaho (2017 dollars)2

2017 1 Year Change 3 Year Change
US Median Gross Rent $1,012 +1.61% +5.86%
Idaho Median Gross Rent $822 +2.49% +6.34%
Ada County ID Median Gross Rent $942 +5.49% +6.44%

Ada County ID Real Gross Rent Trends

At $942, real median gross rent in Ada County was at its highest level in 2017 since the series began in 2005. At $957, real average gross rent in Ada County was at its highest level in 2017 since the series began in 2005.

Real Gross Rent: Ada County ID Median, Ada County ID Average, Idaho Median, US Median

Lower quartile, median and upper quartile real gross rent

Real Gross Rent History for Ada County

Date US
Median
Idaho
Median
Ada County ID
Median
Ada County ID
Average
2017 $1,012 $822 $942 $957
2016 $996 $802 $893 $940
2015 $987 $792 $928 $909
2014 $956 $773 $885 $927
2013 $924 $740 $855 $932
2012 $912 $724 $832 $863
2011 $912 $722 $818 $839
2010 $927 $740 $814 $865
2009 $931 $767 $883 $894
2008 $947 $793 $929 $943
2007 $899 $745 $848 $880
2006 $909 $742 $846 $867

Ada County Rental Vacancy Rate

The rental vacancy rate is the fraction of homes for rent that are not occupied.3 In 2017 the rental vacancy rate for Ada County Idaho was 3.16% according to Census ACS data.

Rental Vacancy Rate in Ada County Idaho

2017 1 Year Change 3 Year Change
US 6.18% +0.29% -0.14%
Idaho 6.21% +0.84% +0.98%
Ada County ID 3.16% +0.73% +0.07%

Trends in Ada County ID Rental Vacancy Rate

The rental vacancy rate in Ada County peaked in 2009 at 9.61%. Since then it has fallen by 6.45% to 3.16%. Data records for this series originated in 2005. From a 2015 post peak low of 1.56%, the rental vacancy rate has increased by 1.60%.

Rental Vacancy Rate: Ada County ID, Idaho, US

Rental vacancy rate in Idaho

Historical Rental Vacancy Rate data for Ada County

Date US Idaho Ada County ID
2017 6.18% 6.21% 3.16%
2016 5.89% 5.37% 2.43%
2015 5.85% 4.97% 1.56%
2014 6.32% 5.23% 3.09%
2013 6.49% 5.05% 3.55%
2012 6.77% 6.45% 3.66%
2011 7.40% 5.53% 3.77%
2010 8.17% 7.93% 4.79%
2009 8.43% 8.58% 9.61%
2008 7.86% 7.56% 6.20%
2007 7.87% 6.21% 5.22%
2006 7.70% 5.25% 6.74%

Rent as a Fraction of Income

Using median household income data for Ada County, we can calculate the fraction of income the median household would use to pay rent at the median monthly gross rent rate. For Ada County, median monthly gross rent as a fraction of median household income was 18.57% in 2017 according to the ACS.

Ada County Idaho Median Annual Rent as a Fraction of Median Household Income

2017 1 Year Change 3 Year Change
US 20.13% -0.30% -0.76%
Idaho 18.89% +0.59% -0.04%
Ada County ID 18.57% +1.37% +0.61%

Trends in Ada County ID Rent as a Fraction of Income

The fraction of median Ada County household income required to pay median monthly gross rent peaked in 2013 (relative to the 2005 series origin) at 19.12%. Since then it has fallen by 0.54% to 18.57%.

Fraction of Income towards Rent: Ada County ID, Idaho, US

Percent of median household income going towards median monthly gross rent in Ada County Idaho

Historical Data for Annual Rent as a Fraction of Income in Ada County Idaho

Date US Idaho Ada County ID
2017 20.13% 18.89% 18.57%
2016 20.43% 18.30% 17.21%
2015 20.63% 19.14% 18.86%
2014 20.89% 18.93% 17.96%
2013 20.78% 18.60% 19.12%
2012 20.65% 18.52% 17.94%
2011 20.70% 19.08% 18.88%
2010 20.50% 18.85% 17.81%
2009 20.12% 18.54% 17.88%
2008 19.00% 17.40% 17.02%
2007 18.66% 16.97% 16.35%
2006 18.90% 17.44% 15.82%

Renter Fraction in Ada County Idaho

You can calculate the renter fraction in Ada County in at least two ways: by housing units or by population. I've gone with the housing units measure here. This measure looks at the number of renting households in Ada County as a fraction of total Ada County households. In 2017 31.20% of households were renters according to Census ACS data.

Ada County Fraction of Renters by Household Units

2017 1 Year Change 3 Year Change
US 36.13% -0.75% -0.77%
Idaho 30.34% -1.20% -1.64%
Ada County ID 31.20% -0.50% -1.51%

Trends in the Ada County ID Renter Fraction

The Ada County household renter fraction peaked in in 2012 at 35.03% and is now 3.83% below that level. The origin year for the series is 2005.

Fraction of Renting Households: Ada County ID, Idaho, US

Fraction of renters in Ada County

History of Ada County Renter Fraction

Date US Idaho Ada County ID
2017 36.13% 30.34% 31.20%
2016 36.88% 31.54% 31.70%
2015 36.97% 31.04% 32.20%
2014 36.90% 31.98% 32.71%
2013 36.50% 30.64% 31.83%
2012 36.09% 31.63% 35.03%
2011 35.42% 31.26% 33.28%
2010 34.65% 30.38% 32.87%
2009 34.13% 28.47% 29.68%
2008 33.36% 29.14% 30.46%
2007 32.80% 27.95% 29.26%
2006 32.73% 28.73% 29.55%

1. Gross rent is defined as contract rent plus the estimated average monthly cost of utilities (electricity, gas, water, and sewer) and fuel (oil, coal, kerosene, wood, etc.). Because some rentals include utilities and others don't, gross rent is a way of normalizing the variability.

2. Real dollars are calculated using the CPI-U less shelter series.

3. The rental vacancy rate is computed by dividing the number of vacant units for rent by the sum of the renter-occupied units, vacant units that are for rent, and vacant units that have been rented but not yet occupied.