Millbourne Borough (English pronunciation: /ˈmɪːlbəɹn/ ) is a self-governing municipal borough in Delaware County, Pennsylvania, United States. As of the 2020 census, the population is 1,212. Millbourne borders Philadelphia along Cobbs Creek. The name "Millbourne" comes from the word Mill and "bourne" meaning creek. Millbourne was settled by Samuel Sellers in 1682. Samuel's descendants later owned a gristmill in Millbourne called Millbourne Mills. In the early 1900s, developers Samuel Shoemaker and John L. Fry developed housing in Millbourne, leading to its separation from Upper Darby and its official incorporation as a borough in 1909. Millbourne Mills shut down in 1926 and was replaced by…

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Town numbers

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Living in Millbourne

Safety in Millbourne

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Not graded

A grade needs all of the FBI's latest years (2023–2025). Millbourne's police department reported only 2024 and 2025, so we don't grade it yet. The figures below are still real.

Violent crime per 1,000

Millbourne 7.4

Pennsylvania 2.3

U.S. 3.3

Property crime per 1,000

Millbourne 27.9

Pennsylvania 13.6

U.S. 15.5

FBI crime data, 2025 · crimes reported to policeCrime & safety →

Work & commute in Millbourne

Full picture →

Most working residents leave Millbourne for work: only 1% work in town. The top destinations are Philadelphia (37%), Upper Darby (12%) and Upper Merion (3%). Half commute less than 6 miles.

Philadelphia

37%

Upper Darby

12%

Upper Merion

Lower Merion

1%Work in townlive and work in Millbourne 6 miWhere do people commute?the commute map 289Jobs based herea commuter town

Census LEHD 2023 · ACSWork & commute in Millbourne →

Health in Millbourne

Compared with Pennsylvania

3worse than PA

of 5 measures CDC estimates. The other 2 are too close to call.

Conditions all close Habits 1▼ 0 close Care 2▼ 1 close

BetterToo close to callWorse

What stands out

47.6%More adults sleeping under 7 hoursPA 37.9% · worse 55.4%Fewer adults screened for colon cancerPA 67.5% · worse 54.3%Fewer adults seeing a dentistPA 64.4% · worse

Care nearby

Main Line Hospital LankenauWynnewood · 1.9 mi · ER

Fairmount Primary Care Center at Horizon HousePhiladelphia · 0.7 mi · sliding-scale fees

Primary careNo shortage

DentalNo shortage

Mental healthNo shortage

CDC PLACES 2025 · modeled estimates for adults · CDC's estimate for Millbourne · CMS · HRSAHealth in Millbourne →

Natural hazards in Millbourne

Low

Expected storm and flood damage is higher than in 27% of U.S. communities.

🌊 Inland flooding🏚️ Earthquakes🌡️ Heat waves

0Does Millbourne flood?no paid flood claims on record 2Disasters that paid out herefederal disasters sent FEMA money to Millbourne MapMillbourne vs. its neighborsnearby towns shaded by rating

FEMA National Risk Index December 2025 · OpenFEMANatural hazards in Millbourne →

Climate in Millbourne

Full climate →

Millbourne has chilly winters and warm summers. A typical July afternoon reaches 87°, a January night drops to 25°, and about 23 inches of snow falls in a normal winter.

43° / 27°Winter

63° / 43°Spring

85° / 65°Summer

67° / 48°Fall