“With homeownership rates at their lowest level in 20 years, historically low levels of housing starts and relatively low home prices in many parts of the country, there is still plenty of opportunity in the U.S. housing market for single family rental investors employing a variety of investing strategies,” says Daren Blomquist, vice president at RealtyTrac. “Whether focusing on markets where homeownership-shy Millennials are migrating, markets where recovering Gen X homeowners-turned-renters are prevalent, or markets Baby Boomers are testing for retirement, investors can find good options with solid potential rental returns.

“There are certainly markets where buying single family rentals no longer makes sense because of rapidly rising prices over the past few years,” Blomquist added. “Savvy single family rental investors will tread cautiously in such markets despite the siren song of strong home price appreciation.”

For the report, RealtyTrac analyzed median sales prices for single family homes and condos and average fair market rents for three bedroom properties, along with unemployment rates and demographic trends in 516 U.S. counties with a combined population of 236 million people — 76 percent of the total U.S. population. (See full methodology below.)

The 516-county analysis found an average potential return on residential rental properties of 9.04 percent in the first quarter of 2015, down slightly from an average potential annual return of 9.06 percent for residential rentals purchased in the third quarter of 2014—the most recent residential rental property report issued by RealtyTrac.

Best markets for buying residential rentals in Georgia, Maryland, Virginia and Michigan
Markets with the highest potential rental returns were Clayton County, Ga., in the Atlanta metro area (25.83 percent), Bibb County, Ga., in the Macon metro area (22.33 percent), Baltimore City, Md., (20.99 percent), Richmond City, Va., (20.42 percent), and Wayne County, Mich., in the Detroit metro area (19.34 percent).

Best markets for renting to Millennials
Among the 516 counties analyzed there were 50 where the millennial share of the population was above the national average of 22 percent, where the millennial population increased at least 5 percent between 2007 and 2013, and where potential annual rental returns on residential properties were 9 percent or higher.

“With the aggressive growth of companies like Amazon, and the arrival of several Silicon Valley newcomers like Facebook, Twitter, Google, and Apple, Seattle is becoming an increasingly popular spot for Millennials,” says OB Jacobi, president of a Seattle-based real estate company, where Pierce County ranked as one of the top 50 markets for renting to Millennials and King County saw a 34 percent jump in Millennials between 2007 and 2013—the 13th biggest increase of the 516 counties analyzed in the report. “Not only do many of these Millennials have stable employment, but strong job prospects going forward, and a rosy forecast for future salary growth. All of this has turned Seattle into a sweet spot for those looking to buy rental properties. Vacancies are low, rents are on the rise, and growth in Seattle’s tech sector is providing a built-in clientele for investors with no signs of slowing.”

Millennial magnet markets with the highest annual rental returns were Baltimore City, Md., (20.99 percent annual gross yield), Richmond City, Va., (20.42 percent), Philadelphia County, Pa., (18.78 percent), Wyandotte County, Kan., in the Kansas City metro area (17.60 percent), and Richmond County, Ga., in the Augusta-Richmond County metro area (16.97 percent).

Best markets for renting to Gen Xers

There were 20 counties among those analyzed where the Generation X share of the population was above the national average of 16 percent, where the Generation X population increased at least 5 percent between 2007 and 2013, and where potential annual rental returns on residential properties were 9 percent or higher.

“Ohio housing is affordable, attracting many different income and age demographics to the state,” says Michael Mahon, executive vice president of a real estate company covering the Ohio housing markets of Cincinnati, Dayton and Columbus, where Franklin County ranked among the 50 best for renting to Millennials, and Licking County ranked among the 20 best for renting to Gen Xers as well as among the 40 best for renting to Baby Boomers. “The stability of prices within the Ohio markets over recent years has contributed to an increasing demand for housing along with job and population growth throughout many of Ohio’s local markets. With many developers still in recovery from our nation’s economic crisis, new construction projects have been underwhelming in meeting Ohio’s housing demand. As demand continues to increase and supply continues at conservative levels, anticipation for 2015 is for continued increases in rental returns throughout the state.”

Generation X-heaving markets with the highest annual rental returns were counties in the Atlanta, Chicago, Jacksonville, Fla., Little Rock, Ark., and Orlando metro areas.

Best markets for renting to Baby Boomers
There were 40 markets among those analyzed where the Baby Boomer share of the population was above the national average of 25 percent, where the Baby Boomer population increased at least 5 percent between 2007 and 2013, and where potential annual rental returns on residential properties were 9 percent or higher.

Baby Boomer bastions with the highest annual rental returns were counties in the Tampa, Ocala, Fla., East Stroudsburg, Penn., Homosassa Springs and Binghamton, N.Y. metro areas.

Markets with biggest rent increases in Texas, Colorado and North Carolina

Among all counties analyzed with rental data available in both 2014 and 2015, the average fair market rent for a three-bedroom property was $1,255 for 2015, up 2 percent from an average of $1,230 for fair market rents in 2014.

Fair market rents on three-bedroom properties increased 10 percent or more from 2014 to 2015 in 35 counties with a combined population of 16.3 million. The biggest percentage increases were counties in Midland, Texas (up 24 percent), Denver, Colo., (up 20 percent), Asheville, N.C., (up 19 percent), Roseburg, Ore., (up 18 percent), and Seaford, Del., (up 18 percent). Other markets with rent increases of 10 percent or more included Chicago, Santa Barbara, Calif., Shreveport, La., Green Bay, Wis., and Milwaukee.

Safe haven rental markets in Virginia, Ohio, Michigan, Pennsylvania and North Carolina

Among the 516 counties, 70 matched the criteria for safe haven rental markets, with unemployment rates below the national average of 5.6 percent and with annual rental returns of 10 percent or higher. Markets with the highest rental returns among these safe haven residential rental markets were Richmond City, Va., (20.42 percent annual gross yield), Trumbull County, Ohio in the Youngstown-Warren-Boardman metro area (15.52 percent), Muskegon County, Mich., in the Muskegon-Norton Shores metro area (15.34 percent), Fayette County, Penn., in the Pittsburgh metro area (14.99 percent), and Bay County, Mich., in the Bay City metro area (14.78 percent).

For more information, visit www.realtytrac.com.