20 Rapidly Expanding U.S. Suburbs That Are Also Among The Richest

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Where people move tells a story. Lately, it’s pointing toward suburbs that combine peace, access, and prosperity. These aren’t sleepy towns—they’re thriving communities with high incomes, expanding schools, and fresh energy. If you’re wondering where the momentum is heading, these 20 suburbs are leading the way.

Prosper, Texas

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In recent years, few North Texas suburbs have changed as quickly or as deliberately as Prosper. Its shift from quiet roads and open land to a thriving suburban hub has been no accident. Prosper’s upscale identity is the result of carefully planned growth, shaped by strong schools and long-term desirability.

Dublin, California

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Two BART stations, proximity to Interstates 580 and 680, and a commute-friendly location about an hour from San Francisco make Dublin a geographic win. Add nearly 1,800 new housing units per 10,000 people over the past decade, and you’ve got a city building with purpose.

Naperville, Illinois

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Families continue to choose Naperville for its easy access to Chicago, but location isn’t the only draw. The suburb offers a reliable mix of residential comfort and economic opportunity, which appeals to long-term planners. In fact, a median income of $125,000 is necessary to sustain that balance. Plus, it supports local growth.

Fulshear, Texas

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Topping GoBankingRates’ list of the fastest-growing wealthy suburbs in America, Fulshear has seen a jaw-dropping 237% population jump between 2018 and 2023. Now home to over 42,000 people, this place is clearly on the radar of buyers. And with a median household income nearing $180K and homes averaging $521K, the numbers tell a serious story.

Celina, Texas

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Celina didn’t always have luxury homes or that small-town charm people chase now. But after a 190% population jump, things look different. It’s close to major employers and offers everything from good schools to stylish developments. So, it’s no surprise buyers keep coming, especially those seeking ease.

Flower Mound, Texas

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Positioned northwest of Dallas-Fort Worth, Flower Mound provides a mix of established neighborhoods and a thoughtfully paced lifestyle. The town’s steady expansion has kept infrastructure aligned with demand. And with strong civic planning ensuring access to daily necessities, residents enjoy the benefits of suburban life.

Erie, Colorado

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Erie’s rise signals a shift toward quieter, more upscale suburbs beyond Denver’s core. Roads remain clear, and life follows an intentional pace. Moreover, as more people look for relief from urban congestion, Erie delivers the space they need while keeping access to essential conveniences intact.

Sammamish, Washington

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Once rural farmland, Sammamish, Washington, has grown into one of America’s most affluent suburbs. With a population of around 65,000, it’s home to a highly educated workforce, many employed in Seattle’s tech scene just 25 miles away. The average household income? An eye-popping $280,000-plus.

Colleyville, Texas

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In North Texas, Colleyville attracts professionals looking for consistency and a more refined pace. Rather than chasing rapid growth, the city has prioritized residential quality. Its proximity to major job corridors, along with quiet, well-kept streets, continues to win steady interest from high-earning homebuyers.

Frisco, Texas

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Frisco has managed to maintain a sustainable pace of growth, revamping what used to be a quiet outpost into a thriving suburban hub. Its business-friendly climate draws in new employers, which in turn pulls families looking for opportunity. That momentum supports civic investment and a long-term vision that keeps producing results.

University Park, Texas

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With access to Dallas and a clearly defined layout, University Park appeals to families focused on academic outcomes and neighborhood order. Strong public schools drive consistent demand, but it’s the suburb’s controlled growth and predictable environment that encourage long-term residence over short-term turnover.

El Dorado Hills, California

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El Dorado Hills has gained a reputation for scenic elevation paired with a relaxed atmosphere. Over time, its residential expansion has reflected zoning efforts that balance development with open space preservation. Meanwhile, proximity to Sacramento’s business and tech districts continues to draw a flow of professionals and families.

Mountain Brook, Alabama

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The average household income in Mountain Brook sits at $191,128, a sign of its steady affluence. Families move in for the schools and stay because the place feels established from the start. But what keeps them there? A civic identity that quietly builds loyalty over time.

Cary, North Carolina

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Big-name companies like SAS Institute and Epic Games call Cary home, and new jobs are springing up—775 in 2024 alone in high-growth industries like tech, finance, and healthcare. Locals enjoy strong salaries, with median household incomes over $113K and average incomes pushing past $145K.

North Tustin, California

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Real estate is tight here, resulting in annual appreciation rates between 9% and 12%. For those looking to lease rather than buy, rental homes command $4,000 to $6,000 per month. Top-tier schools further boost the area’s reputation, while low-density zoning ensures that even as it grows, North Tustin holds onto its sense of exclusivity.

Eastvale, California

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The Eastvale of today bears little resemblance to what it was a decade ago. Families arrive with higher incomes and long-term plans, drawn by the grounded atmosphere and strong educational options. Quietly but consistently, the suburb has become a destination for those seeking something that will hold its value.

Brookhaven, Georgia

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Brookhaven sits just outside Atlanta and has grown steadily in recent years. With peaceful streets for families and quick access for professionals, it delivers a slower lifestyle without losing touch with the city. That mix has helped it become one of Atlanta’s more dependable suburbs.

The Woodlands, Texas

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North of Houston, The Woodlands was designed to keep things in balance. Homes stay removed from office zones, giving each part of the suburb room to breathe. That separation, along with thoughtful planning, continues to attract families and professionals who prefer structure over the sprawl of nearby cities.

Southlake, Texas

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Unlike faster-growing suburbs, Southlake holds a steady course. Its appeal rests in how well it preserves its identity, even as the region changes. Buyers come looking for calm surroundings, and they stay because the community maintains a level of order that feels both rare and intentional.

San Ramon, California

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San Ramon’s strong economy starts with a solid business core and a steady flow of skilled professionals. This foundation keeps housing demand high, thanks to its lifestyle benefits. Public funds now support targeted enhancements—from transit to schools—designed to reinforce the suburb’s reputation for stability.

Written by Devin J