Delaware

County in Pennsylvania

County

The population development of Delaware.

Name	Status	Population Census 1990-04-01	Population Census 2000-04-01	Population Census 2010-04-01	Population Census 2020-04-01	Population Estimate 2024-07-01
Delaware	County	547,651	550,864	558,979	576,970	584,882	→
Pennsylvania	State	11,881,643	12,281,054	12,702,379	13,002,909	13,078,751

Contents: Incorporated Places

The population development of the incorporated places in Delaware.

The Details icon links to further information about a selected place including its population structure (gender, age groups, age distribution, urbanization, »race«, ethnicity).

Name	Status	County	Population Census 1990-04-01	Population Census 2000-04-01	Population Census 2010-04-01	Population Census 2020-04-01	Population Estimate 2024-07-01
Aldan	Borough	Delaware	4,545	4,355	4,147	4,258	4,277	→
Brookhaven	Borough	Delaware	8,579	7,995	8,012	8,301	8,407	→
Chester	City	Delaware	42,072	37,019	33,889	32,724	34,052	→
Chester Heights	Borough	Delaware	2,323	2,517	2,504	2,909	3,087	→
Clifton Heights	Borough	Delaware	7,241	6,771	6,648	6,852	6,880	→
Collingdale	Borough	Delaware	9,265	8,724	8,777	8,904	8,956	→
Colwyn	Borough	Delaware	2,629	2,429	2,550	2,473	2,483	→
Darby	Borough	Delaware	10,951	10,324	10,700	10,711	10,749	→
East Lansdowne	Borough	Delaware	2,691	2,581	2,668	2,713	2,724	→
Eddystone	Borough	Delaware	2,395	2,449	2,410	2,457	2,465	→
Folcroft	Borough	Delaware	7,534	6,940	6,631	6,798	6,827	→
Glenolden	Borough	Delaware	7,309	7,472	7,090	7,231	7,266	→
Lansdowne	Borough	Delaware	11,656	11,045	10,620	11,097	11,225	→
Marcus Hook	Borough	Delaware	2,500	2,314	2,397	2,457	2,467	→
Media	Borough	Delaware	5,863	5,514	5,434	5,885	5,938	→
Millbourne	Borough	Delaware	826	944	1,159	1,212	1,217	→
Morton	Borough	Delaware	2,725	2,743	2,654	2,771	2,788	→
Norwood	Borough	Delaware	6,166	5,986	5,951	5,942	5,969	→
Parkside	Borough	Delaware	2,344	2,272	2,326	2,326	2,335	→
Prospect Park	Borough	Delaware	6,697	6,594	6,454	6,427	6,452	→
Ridley Park	Borough	Delaware	7,645	7,114	7,019	7,268	7,310	→
Rose Valley	Borough	Delaware	994	942	917	1,016	1,020	→
Rutledge	Borough	Delaware	845	860	784	786	788	→
Sharon Hill	Borough	Delaware	5,747	5,482	5,672	6,015	6,039	→
Swarthmore	Borough	Delaware	6,144	6,176	6,190	6,534	6,596	→
Trainer	Borough	Delaware	2,059	1,849	1,815	1,980	1,984	→
Upland	Borough	Delaware	3,352	2,962	3,337	3,062	3,076	→
Yeadon	Borough	Delaware	11,976	11,728	11,434	12,047	12,405	→

Source: U.S. Census Bureau.

Explanation: Latest available rebased population figures are used. In case of significant changes, they were recalculated by using census block data.

Further information about the population structure:

Gender (C 2020)
Males	276,949
Females	299,881

Age Groups (C 2020)
0-17 years	127,040
18-64 years	349,926
65+ years	99,864

Age Distribution (C 2020)
80+ years	24,835
70-79 years	41,746
60-69 years	73,621
50-59 years	76,835
40-49 years	67,379
30-39 years	74,582
20-29 years	71,952
10-19 years	78,435
0-9 years	67,445

Urbanization (C 2020)
Rural	4,527
Urban	572,303

»Race« (C 2020)
White	367,718
Black/African American	129,242
Indigenous	1,092
Asian	36,457
Pacific Islander	153
Some other	12,149
2 or more	30,019

Ethnicity (C 2020)
Hispanic or Latino	26,772
Other	550,058