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Demographics of Johnston, IA
Affluence Level in Johnston, IA
An upper-middle-class area. Household wealth, education levels, and homeownership run ahead of national benchmarks.
People of Johnston, IA
The people of Johnston, Iowa, today form a highly educated, predominantly white-collar community of 24,196 residents, with a distinctive character shaped by its role as a suburban anchor for Des Moines’ northern growth corridor. The city’s population is notably professional, with 57.9% holding a college degree, and it leans toward a stable, family-oriented lifestyle. While White residents make up 79.3% of the population, Johnston has seen measured diversification, with Black residents at 8.6%, East/Southeast Asian communities at 4.1%, Indian-subcontinent residents at 3.1%, and Hispanic residents at 2.1%. The foreign-born share is a modest 3.1%, indicating a population that is largely native-born but with growing pockets of international professionals.
How the city was settled and grew
Johnston’s settlement began in the mid-19th century, driven by agricultural land grants and the arrival of the railroad. The area was originally part of the Sac and Fox tribal lands before being opened to Euro-American settlers in the 1840s and 1850s. The first permanent settlers were primarily of German and Irish stock, drawn by fertile prairie soil and the promise of homesteads. The town itself was platted in 1870 around the Chicago, Rock Island and Pacific Railroad depot, and it remained a small farming hamlet for decades. The historic Johnston Station neighborhood, near the original depot site, still contains some of the oldest homes, built by these early German and Irish farming families. A second wave of growth came in the 1920s and 1930s, when a small number of Danish and Swedish families settled in the Beaver Creek area, establishing dairy farms and small businesses. The city’s population remained under 1,000 until the post-World War II era, when the construction of Interstate 35/80 and the expansion of Des Moines’ suburbs began to transform it.
Modern era (post-1965)
The post-1965 period marked Johnston’s transformation from a rural village into a planned suburb. The 1970s and 1980s saw a surge of domestic in-migration, primarily from other Midwestern states, as families sought newer housing and better schools. The Greenbrier neighborhood, developed in the 1970s, became a landing point for young professional families, many employed by the growing insurance and finance sectors in Des Moines. The 1990s brought a wave of corporate relocations, particularly with the expansion of the John Deere Des Moines Works and the arrival of technology firms. This drew a more diverse workforce, including a small but notable number of Indian-subcontinent professionals in the Foxboro and Stonegate neighborhoods, who were attracted by the city’s top-rated Johnston Community School District. The 2000s and 2010s saw the development of the Northwest Johnston area, including the Meriwether subdivision, which absorbed many families moving from within the Des Moines metro. The Black population, now 8.6%, grew during this period, concentrated in newer developments like Meriwether and parts of Greenbrier, reflecting a broader suburbanization of African American families from Des Moines’ core. East/Southeast Asian residents, at 4.1%, are largely clustered in Stonegate and Foxboro, many working in healthcare and engineering at nearby MercyOne and Iowa Methodist Medical Center. The Hispanic population, at 2.1%, remains small and dispersed, with no single dominant enclave.
The future
Johnston’s population is projected to continue growing, driven by infill development and the annexation of adjacent farmland. The city is not homogenizing into a single demographic block; rather, it is tribalizing into distinct enclaves along income and ethnic lines. The Meriwether and Northwest Johnston areas are attracting higher-income, predominantly White families, while Greenbrier and Foxboro are becoming more diverse, with a mix of Black, Indian-subcontinent, and East/Southeast Asian households. The Indian-subcontinent community, at 3.1%, is growing slowly but steadily, driven by tech and medical professionals, and is likely to remain concentrated in Stonegate and Foxboro. The East/Southeast Asian population is plateauing, as many second-generation residents move to larger metros for career opportunities. The Black population is expected to grow modestly as more families seek suburban school quality and lower crime rates. The foreign-born share, currently 3.1%, is unlikely to rise dramatically, as Johnston lacks the rental stock and entry-level jobs that attract new immigrants. The city’s overall character will remain that of a well-educated, family-focused suburb, but with increasing ethnic diversity in its newer neighborhoods.
For someone moving in now, Johnston is becoming a place where professional opportunity and school quality drive the population, but where distinct neighborhoods offer different social and ethnic experiences. The city is not a melting pot but a collection of enclaves, each with its own character. New residents should expect a stable, safe, and highly educated community, but one where integration across neighborhoods is still evolving.
* Values derived from national, state, county, city and local statistics and may differ in a specific area. Last updated: 2026-04-29T20:34:54.000Z
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