Far Out! Fastest-Growing Counties In U.S. Are Exurban

Despite years of efforts on the part of planners and governments to promote "smart growth", census data shows that the fastest-growing counties in the U.S. are "suburban, rural or a mixture of both."

1 minute read

March 22, 2006, 6:00 AM PST

By Michael Dudley


"Rural America has been adding population for about 30 years, after losing residents for much of the first half of the 20th Century, according to a study released Wednesday by the Carsey Institute at the University of New Hampshire. Much of those gains have been on the 'fringes of metropolitan areas,' the study said.

Los Angeles remains the nation's largest county, with 9.9 million people. Maricopa County, Ariz., home to Phoenix and Scottsdale, added the most people, 137,000, for the year ending in July 2005.

Flagler County in Florida has grown by 53 percent since 2000, a faster rate than any other county this decade. It had 76,410 residents in July 2005, and probably more by now.

That growth means road projects, new government buildings and skyrocketing school enrollment, said Carl Laundrie, a county administration spokesman.

'There isn't a county in the world that's prepared for 10 percent growth' a year, Laundrie said. 'We are on track to build a school a year for the next 10 years.'"

Thanks to Grist Magazine

Thursday, March 16, 2006 in MSNBC

Young Professional

I love the variety of courses, many practical, and all richly illustrated. They have inspired many ideas that I've applied in practice, and in my own teaching. Mary G., Urban and Environmental Planner

I love the variety of courses, many practical, and all richly illustrated. They have inspired many ideas that I've applied in practice, and in my own teaching.

Mary G., Urban and Environmental Planner

Get top-rated, practical training for planners

"Planetizen federal action tracker" logo superimposed over black and white image of US Capitol dome.

Planetizen Federal Action Tracker

A weekly monitor of how Trump’s orders and actions are impacting planners and planning in America.

September 16, 2026 - Zachary Whalen

Passengers board an Amtrak train under a cloudy sky.

Amtrak, CN end decades-long dispute with eight-year agreement

The new operating agreement establishes an updated framework for the companies to work together, including processes to resolve disputes.

September 18, 2026 - Mass Transit

Geese flock to a frozen pond in Aurora, Colorado. There are houses in the background.

Colorado’s Largest Data Center Could Rise Next to Homes — Without a Public Hearing

The proposed campus would consume 11 times the power of Denver International Airport; as it has across the country, opposition mounts.

September 17, 2026 - Capital & Main

A busy highway in Richmond, with construction and the city visible in the background.

'This is going to be painful:’ Virginia stares down $1.7 billion funding gap for highway maintenance

The state may address the deficit by shifting $290 million from its construction budget to maintenance projects.

September 19 - The Virginia Mercury

The Gross Reservoir, a large body of water surrounded by trees and mountains.

Judges permit Denver to divert 77,000 acre feet from the Colorado River for reservoir expansion

Overuse and climate change have caused the Colorado River’s water levels to plummet.

September 18 - Inside Climate News

Passengers board an Amtrak train under a cloudy sky.

Amtrak, CN end decades-long dispute with eight-year agreement

The new operating agreement establishes an updated framework for the companies to work together, including processes to resolve disputes.

September 18 - Mass Transit