Population Change 1990-2000
County or Municipality	2000 Population	1990 Population	Population Change	Percent Change
Pennsylvania	12 281 054	11 881 643	399 411	3.4
Chester County	433 501	376 396	57 105	15.2
Atglen borough	1 217	825	392	47.5
Avondale borough	1 108	954	154	16.1
Birmingham township	4 221	2 636	1 585	60.1
Caln township	11 916	11 997	-  81	- 0.7
Charlestown township	4 051	2 754	1 297	47.1
Coatesville city	10 838	11 038	-  200	- 1.8
Downingtown borough	7 589	7 749	-  160	- 2.1
East Bradford township	9 405	6 440	2 965	46.0
East Brandywine township	5 822	5 179	643	12.4
East Caln township	2 857	2 619	238	9.1
East Coventry township	4 566	4 450	116	2.6
East Fallowfield township	5 157	4 433	724	16.3
East Goshen township	16 824	15 138	1 686	11.1
East Marlborough township	6 317	4 781	1 536	32.1
East Nantmeal township	1 787	1 448	339	23.4
East Nottingham township	5 516	3 841	1 675	43.6
East Pikeland township	6 551	5 825	726	12.5
Easttown township	10 270	9 570	700	7.3
East Vincent township	5 493	4 161	1 332	32.0
East Whiteland township	9 333	8 398	935	11.1
Elk township	1 485	1 129	356	31.5
Elverson borough	959	470	489	104.0
Franklin township	3 850	2 779	1 071	38.5
Highland township	1 125	1 199	-  74	- 6.2
Honey Brook borough	1 287	1 184	103	8.7
Honey Brook township	6 278	5 449	829	15.2
Kennett township	6 451	4 624	1 827	39.5
Kennett Square borough	5 273	5 218	55	1.1
London Britain township	2 797	2 671	126	4.7
Londonderry township	1 632	1 243	389	31.3
London Grove township	5 265	3 922	1 343	34.2
Lower Oxford township	4 319	3 264	1 055	32.3
Malvern borough	3 059	2 944	115	3.9
Modena borough	610	563	47	8.3
New Garden township	9 083	5 430	3 653	67.3
Newlin township	1 150	1 092	58	5.3
New London township	4 583	2 721	1 862	68.4
North Coventry township	7 381	7 506	-  125	- 1.7
Oxford borough	4 315	3 769	546	14.5
Parkesburg borough	3 373	2 981	392	13.1
Penn township	2 812	2 257	555	24.6
Pennsbury township	3 500	3 326	174	5.2
Phoenixville borough	14 788	15 066	-  278	- 1.8
Pocopson township	3 350	3 266	84	2.6
Sadsbury township	2 582	2 510	72	2.9
Schuylkill township	6 960	5 538	1 422	25.7
South Coatesville borough	997	1 026	-  29	- 2.8
South Coventry township	1 895	1 682	213	12.7
Spring City borough	3 305	3 433	-  128	- 3.7
Thornbury township	2 678	1 131	1 547	136.8
Tredyffrin township	29 062	28 028	1 034	3.7
Upper Oxford township	2 095	1 615	480	29.7
Upper Uwchlan township	6 850	4 396	2 454	55.8
Uwchlan township	16 576	12 999	3 577	27.5
Valley township	5 116	4 007	1 109	27.7
Wallace township	3 240	2 541	699	27.5
Warwick township	2 556	2 575	-  19	- 0.7
West Bradford township	10 775	10 406	369	3.5
West Brandywine township	7 153	5 984	1 169	19.5
West Caln township	7 054	6 143	911	14.8
West Chester borough	17 861	18 041	-  180	- 1.0
West Fallowfield township	2 485	2 342	143	6.1
West Goshen township	20 495	18 082	2 413	13.3
West Grove borough	2 652	2 128	524	24.6
West Marlborough township	859	874	-  15	- 1.7
West Nantmeal township	2 031	1 958	73	3.7
West Nottingham township	2 634	2 183	451	20.7
West Pikeland township	3 551	2 323	1 228	52.9
West Sadsbury township	2 444	2 160	284	13.1
Westtown township	10 352	9 937	415	4.2
West Vincent township	3 170	2 262	908	40.1
West Whiteland township	16 499	12 403	4 096	33.0
Willistown township	10 011	9 380	631	6.7
Source: U.S. Census Bureau	Prepared by: Pennsylvania State Data Center