In the most expensive counties in America, a one-bedroom apartment can cost more than a mortgage payment in the Midwest. The gap between the cheapest and costliest places to live has never been wider.
We analyzed the latest Census Bureau data to rank the 25 most expensive counties by median gross rent. These are the places where housing costs stretch budgets to the breaking point — and where your dollar goes the least distance.
The 25 Most Expensive Counties to Live In
Ranked by median gross rent from highest to lowest.
| Rank | County | State | Median Rent | Median Home Value | Median Income |
|---|---|---|---|---|---|
| 1 | San Mateo County | California | $2,922/mo | $1,559,600 | $158,855 |
| 2 | Santa Clara County | California | $2,857/mo | $1,490,600 | $164,281 |
| 3 | Marin County | California | $2,668/mo | $1,507,300 | $149,091 |
| 4 | San Francisco County | California | $2,476/mo | $1,394,500 | $140,970 |
| 5 | Orange County | California | $2,434/mo | $962,600 | $116,289 |
| 6 | Loudoun County | Virginia | $2,386/mo | $743,800 | $181,765 |
| 7 | Contra Costa County | California | $2,375/mo | $866,800 | $127,229 |
| 8 | Alameda County | California | $2,357/mo | $1,090,100 | $129,367 |
| 9 | Arlington County | Virginia | $2,322/mo | $895,000 | $142,114 |
| 10 | Ventura County | California | $2,317/mo | $822,700 | $109,797 |
| 11 | Fairfax County | Virginia | $2,276/mo | $732,800 | $153,637 |
| 12 | Santa Cruz County | California | $2,264/mo | $1,027,500 | $111,093 |
| 13 | Suffolk County | New York | $2,255/mo | $578,400 | $130,686 |
| 14 | Nassau County | New York | $2,252/mo | $684,700 | $146,202 |
| 15 | San Diego County | California | $2,246/mo | $854,700 | $106,268 |
| 16 | Fairfax city | Virginia | $2,245/mo | $722,600 | $132,348 |
| 17 | Napa County | California | $2,237/mo | $869,500 | $111,471 |
| 18 | Nantucket County | Massachusetts | $2,213/mo | $1,593,800 | $139,688 |
| 19 | Middlesex County | Massachusetts | $2,201/mo | $727,800 | $130,847 |
| 20 | New York County | New York | $2,197/mo | $1,090,500 | $103,931 |
| 21 | Douglas County | Colorado | $2,193/mo | $713,600 | $149,594 |
| 22 | Falls Church city | Virginia | $2,190/mo | $1,055,600 | $143,262 |
| 23 | Solano County | California | $2,163/mo | $617,700 | $100,401 |
| 24 | Park County | Colorado | $2,161/mo | $532,100 | $103,670 |
| 25 | Sonoma County | California | $2,158/mo | $815,500 | $104,674 |
Why These Counties Are So Expensive
The most expensive counties cluster around a few well-known drivers:
- Proximity to major job centers: Most are in or near San Francisco, New York, Boston, Seattle, or Washington DC metro areas where high-paying tech, finance, and government jobs drive up demand.
- Limited housing supply: Zoning restrictions, geographic constraints (coastlines, mountains), and slow construction pipelines keep supply tight.
- High incomes creating competition: When many residents earn six figures, landlords and sellers price accordingly.
- Desirable amenities: Top-tier schools, cultural institutions, restaurants, and natural beauty all contribute to demand.
The Income You Need to Afford These Counties
Using the 30% rule (spending no more than 30% of gross income on housing), here is what you need to earn to afford the median rent in these areas:
At $2,922/month (the most expensive county on the list), you would need a household income of at least $116,880 per year just to afford the median rent. That is well above the national median household income of $74,755.
Even in county #25 on this list, the income required to comfortably rent is significantly above national norms. This is why so many residents in these areas are housing cost-burdened — spending well over 30% of income on housing.
What You Can Get Elsewhere for the Same Money
Perspective matters. The median rent in the most expensive county on this list could cover a mortgage payment on a home worth $300,000-400,000 in an affordable area. In some counties, it could cover two mortgage payments.
This is the fundamental trade-off of high-cost living: you get access to high-paying jobs and urban amenities, but your housing dollar buys dramatically less. Remote work has shifted this equation for many workers — you no longer need to live where the jobs are.
Tips for Managing High Housing Costs
- House-hack: Buy a multi-unit property (duplex or triplex), live in one unit, and rent out the others to offset your mortgage.
- Negotiate: In high-cost rental markets, landlords may negotiate on move-in incentives, lease terms, or amenity packages.
- Consider nearby counties: Commuting from a slightly less expensive county can save thousands per year.
- Evaluate the income trade-off: If moving to a cheaper area means a significant pay cut, the net savings may be smaller than expected.
- Track your rent-to-income ratio: Use HomesByCounty to compare counties and find the best balance of cost and opportunity.
Methodology
All data comes from the U.S. Census Bureau, American Community Survey (ACS) 5-Year Estimates (2019-2023). Counties are ranked by median gross rent. Counties with missing rent or income data were excluded.
Data source: U.S. Census Bureau, American Community Survey (ACS) 5-Year Estimates (2019-2023). All figures are estimates based on survey data and may not reflect current market conditions.