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Demographics of Millsboro, DE
Affluence Level in Millsboro, DE
A middle-class area roughly in line with national averages across income, home values, education, and employment.
People of Millsboro, DE
Millsboro, Delaware, is a town of 7,152 residents that remains predominantly white (64.8%) but has grown notably more diverse over the past two decades, with a Black population of 16.9% and a Hispanic population of 10.0%. The town’s character is shaped by its dual identity as a historic Sussex County agricultural hub and a rapidly expanding bedroom community for coastal employment centers like Georgetown, Lewes, and the beach resorts. With a foreign-born share of just 3.6% and a college-educated rate of 36.7%, Millsboro’s population is less diverse and less highly educated than the national average, reflecting its roots in farming, manufacturing, and trades.
How the city was settled and grew
Millsboro was founded in the late 18th century as a mill town on the Indian River, drawing its first permanent European settlers—primarily English and Scots-Irish farmers—who were attracted by land grants from the Penn family and the promise of fertile, well-watered soil. The town’s early economy revolved around gristmills, sawmills, and shipbuilding, with the Indian River providing a navigable route to the Atlantic. The original settlement clustered around what is now Main Street and the riverfront, where the mill owners and merchants built homes and storefronts. A second wave of growth came after the Civil War, when freed Black families moved into the area to work as farm laborers and domestic workers, establishing a small but enduring community in the West Millsboro neighborhood, near the railroad tracks that bisected the town. By the early 20th century, the town’s population was roughly 80% white and 20% Black, a ratio that held steady through the mid-1900s as Millsboro remained a quiet, rural service center for surrounding poultry and vegetable farms.
Modern era (post-1965)
The post-1965 era brought two major demographic shifts to Millsboro. First, the Immigration and Nationality Act of 1965 had a limited direct effect here—the foreign-born share remains low at 3.6%—but it did contribute to a small influx of Hispanic workers, primarily from Mexico and Central America, who arrived in the 1990s and 2000s to fill labor shortages in the region’s dominant poultry processing industry. These families concentrated in the Mill Pond Estates and Plantation Lakes subdivisions, newer developments on the town’s eastern edge that offered affordable starter homes. Second, domestic in-migration accelerated sharply after 2000, driven by retirees and remote workers seeking lower taxes and proximity to the Delaware beaches. This wave is overwhelmingly white and middle-aged, and it has settled in master-planned communities like Long Neck (technically outside town limits but functionally part of the Millsboro area) and the Bayside development near the Indian River Bay. The Black population, which had been stable at roughly 20% for decades, has declined slightly to 16.9% as younger Black families have moved to larger cities for employment, while the Hispanic share has risen from negligible levels in 1990 to 10.0% today. The East/Southeast Asian population (0.5%) and Indian-subcontinent population (0.8%) remain tiny, mostly professionals employed at the nearby Beebe Healthcare system or the University of Delaware’s Georgetown campus.
The future
Millsboro’s population is heading toward continued growth—the town has added roughly 2,000 residents since 2010—but the growth is bifurcated. The white retiree and remote-worker influx shows no sign of slowing, as Sussex County remains one of the fastest-growing counties in the Northeast, and new subdivisions like Warwick Farms and Red Mill Pond are being built to accommodate them. This group is homogenizing the town’s western and northern edges into predominantly white, affluent enclaves. Meanwhile, the Hispanic community is growing organically through family reunification and higher birth rates, but it is not yet large enough to create distinct ethnic neighborhoods; instead, Hispanic families are dispersed across the older, more affordable housing stock in West Millsboro and the mobile home parks along Route 24. The Black population is likely to continue its slow decline as older residents pass away and younger generations leave for Wilmington, Philadelphia, or the South. The foreign-born share will probably rise modestly—perhaps to 5–6% by 2035—but Millsboro will remain a predominantly native-born, English-speaking town. The next 10–20 years will see the town become more economically stratified, with affluent newcomers in gated golf communities and working-class families in older neighborhoods, but racial and ethnic lines will remain relatively stable.
For someone moving to Millsboro now, the town offers a clear trade-off: low taxes, quiet streets, and easy beach access, but limited diversity and a social landscape that is increasingly divided by income and housing type. The historic core along Main Street retains a small-town feel, while the newer subdivisions feel like generic exurban sprawl. The population is growing, but it is growing in a way that reinforces existing patterns rather than creating a truly integrated community.
* Values derived from national, state, county, city and local statistics and may differ in a specific area. Last updated: 2026-04-30T03:27:22.000Z
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