The 3 Most Expensive Counties in the US

Real Estate Agent with The Mode Real Estate Group DRE # 00935148

The 3 Most Expensive Counties in the US

Here are the 3 most expensive counties in the US.  #1 was actually kind of surprising!
#3 is Marin County, California. Marin County sits just north of San Francisco on the Pacific Ocean and west of Napa Valley. It’s this geographic location that contributes to it being one of the most affluent counties in the country. Marin has a high-paying job market and a large retired population with significant wealth which makes it a very expensive place to live.
#2 on the list is Santa Clara county, California. Santa Clara county houses the city of San Jose and sits just across San Francisco Bay from Marin County. For all intents and purposes, Santa Clara county IS Silicon Valley, so it’s obvious why this county is on the list of most affluent. Some of the largest tech companies are headquartered here, and 1 in 4 workers here is employed in some tech-related field.
And the most expensive county in the US is Loudoun County, Virginia. Loudoun county has sat at the top of this list since 2008 with a median household income of around $140,000. Location- wise, Loudoun county sits northwest of Washington D.C., with the origins of Loudoun's wealth dating back to the early 1960s when the Washington Dulles International Airport was constructed nearby. Soon, businesses followed prompting rapid growth that eventually led to a boom in high-tech, well-paid jobs. Follow me for more real estate facts and figures!
Posted by

Lori Mode

Lori Mode, Keller Williams Realty - Elk Grove

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About the author: The above Real Estate information was provided by Lori Mode.  Lori can be reached via email at or by phone at 916-405-5737. Lori has helped people move in and out of Elk Grove and surrounding Sacramento areas for the last 37 years.

Thinking of selling your home? I have a passion for Real Estate and love to share my marketing expertise!

Will Hamm
Hamm Homes - Aurora, CO
"Where There's a Will, There's a Way!"

Hello Lori and thank you for sharing this great information with us here in the Rain. Great you are almost at 500,00 points, I will help you out.   Make it a great day!

Aug 29, 2023 10:10 AM
Lori Mode

Thank you Will!

Aug 29, 2023 12:11 PM
John Juarez
The Medford Real Estate Team - Fremont, CA

I live in Alameda County, CA. It is on San Francisco East Bay. Not as expensive as Maring County or Santa Clara County but not cheap, either.

Aug 29, 2023 11:23 AM
Lori Mode

John, no your prices in Alameda County definitely are higher than we are in Sacramento County!

Aug 29, 2023 04:23 PM
Andrew Mooers | 207.532.6573
Northern Maine Real Estate-Aroostook County Broker

Like Will Hamm says, we are all trying to help push you over the top!

Aug 29, 2023 11:50 AM
Lori Mode

I appreciate that Andrew!


Aug 29, 2023 12:11 PM
Wanda Kubat-Nerdin - Wanda Can!
Red Rock Real Estate (435) 632-9374 - St. George, UT
The best agent in Southern Utah!

The song, 'Rich Men North of Richmond' makes so much more sense to me now. Thank you for the information, Lori!

Aug 29, 2023 12:03 PM
Lori Mode

Wanda, thank you for the comment.  I have not actually heard that song before!

Aug 29, 2023 04:24 PM
Debe Maxwell, CRS
Savvy + Company (704) 491-3310 - Charlotte, NC

Hi Lori! I had no idea but, it doesn't surprise me about VA's Loudoun County - a LOT of influential DC folks reside there! Thank you for sharing this and here's to a quick tip over the top to a free account in the days to come!

Aug 29, 2023 01:04 PM
Lori Mode

Debe, thank you!  I

Aug 29, 2023 04:25 PM
Jeff Dowler, CRS
eXp Realty of California, Inc. - Carlsbad, CA
The Southern California Relocation Dude

Hi Lori:

I was surprised at #1 but not #s 2 and 3.

You'll it the 500,000 pt. milestone before too long! Good luck getting a few more posts done.


Aug 29, 2023 02:11 PM
Lori Mode

Thanks Jeff!  I hadn't realized that I was so close to the 500,000 pt. milestone until Will pointed it out to me and others!

Aug 29, 2023 04:26 PM
Kathleen Daniels, Probate & Trust Specialist
KD Realty - 408.972.1822 - San Jose, CA
Probate Real Estate Services

No surprise to me to see Santa Clara County as #2.  It is hella expensive here! 

You will soon reach 500,000 points to FREEdom! 

Aug 29, 2023 03:17 PM
Lori Mode

Kathleen, yes it is.  It has always been amazing to me just how much higher prices are in Santa Clara county than our prices.  We are only 2 hours away!

Aug 29, 2023 04:28 PM
Elyse Berman, PA
LoKation Real Estate - Boca Raton, FL
Boca Raton FL (561) 716-7824

Hi Lori,  Thanks for the information on the three counties.  I had no idea!  Here's to you making it to 500,000 soon!  I hope I was of some help.

Aug 29, 2023 04:17 PM
Lori Mode

Elyse, thank you and yes, you were!

Aug 29, 2023 04:29 PM
Wayne Martin
Wayne M Martin - Oswego, IL
Real Estate Broker - Retired

Good morning Lori. Our paths seldom cross her in the Rain but thanks to Will Hamm I am here to help you get to 500,000 points. May his heads-up give you the boost you need to get there. Enjoy your day.

Aug 30, 2023 03:35 AM
Lori Mode

Thank you Wayne!

Aug 30, 2023 07:16 AM
Peter Mohylsky, Destin BeachPro
PMI. Destin - Miramar Beach, FL
Call me at 850-517-7098

Interesting information,  I am so glad I am not on that list.  

Aug 30, 2023 05:31 AM
Jerry Newman
Brown Realty, 210-789-4216, - San Antonio, TX
Texas REALTOR, San Antonio Military Relocation

Hi Lori, I am here to help you reach that 500,000 point goal. Nice information to share about those counties in California. Have a Blessed Week!

Aug 30, 2023 09:22 AM