Three measures of US rent
Rent enters the inflation statistics with a lag of about a year. That gap between market rents and measured shelter inflation was the single largest source of confusion about US inflation in the 2020s.
At a glance
| Measure | Latest | Period | Published by | Frequency |
|---|---|---|---|---|
| Apartment List median asking rent | 1,390 USD per month | Aug 2026 | Apartment List | Monthly |
| Zillow Observed Rent Index (US) | 1,947.97 USD | Aug 2026 | Zillow | Monthly |
| CPI housing component | 359.74 | Aug 2026 | Bureau of Labor Statistics | Monthly |
| Apartment List vacancy index | 7.08% | Aug 2026 | Apartment List | Monthly |
How each one is built
- Apartment List median asking rent
- Method: Median rent on units newly listed, adjusted for the mix of units
- Covers: National, states and the largest metros
- Released: Start of the following month
- Zillow Observed Rent Index (US)
- Method: Repeat-rent index on listed units, smoothed and weighted to the rental stock
- Covers: National and metro level
- Released: Mid-month
- CPI housing component
- Method: Rent actually paid across ALL tenancies, including leases signed years ago
- Covers: About a third of the CPI basket
- Released: With CPI, about two weeks after the month
- Apartment List vacancy index
- Method: Share of units vacant on the platform
- Covers: A leading indicator of where asking rents go next
- Released: With the rent report
Asking rent versus rent paid
Asking rent describes a NEW lease. Most tenants are not signing one: the CPI measures what every renter actually pays, and a household halfway through a twelve-month lease contributes the rent it agreed last year. Each month only about a twelfth of the stock resets, so market rents pass into the CPI slowly and with a lag that research puts at roughly nine to twelve months.
The CPI shelter component also includes owners’ equivalent rent — an estimate of what homeowners would pay to rent their own home. That is not a market price anybody transacts at, and it is a larger share of the index than tenant rent.
Which one to use
Use asking-rent measures to forecast where shelter inflation is going. When Apartment List and Zillow both show asking rents flat, the CPI shelter component will keep decelerating for roughly another year regardless of what happens next.
Use CPI housing for anything about the cost of living as households experience it, and for anything indexed to inflation. It is slower but it is what people pay.
Watch the vacancy index as the leading edge of the leading indicator: vacancy rises before asking rents fall, which gives an extra few months of warning.
Frequently asked questions
- Why does CPI rent lag market rents?
- CPI measures rent paid across all leases, and only about one in twelve resets each month. Market asking rents therefore pass into the index gradually over roughly a year.
- What is owners’ equivalent rent?
- An estimate of what a homeowner would pay to rent their own home. It is the largest single component of the US CPI even though no transaction takes place.
- Which rent measure is most current?
- Apartment List publishes at the start of the following month, making it the earliest of the three.
- Do asking rent indexes cover single-family rentals?
- Zillow covers a broader mix including single-family rentals; Apartment List is focused on multifamily apartment listings.
