Data / Rankings / Population density / US counties

US counties by population density

New York County had the highest population density of 3144 counties in 2023, at 27,802.1 inhabitants per km². Yukon-Koyukuk Census Area had the lowest, at 0 inhabitants per km². The median was 17.3 inhabitants per km² and the figure for the United States was 36.8 inhabitants per km². Source: the U.S. Census Bureau.

Highest27,802.1New York County
Lowest0Yukon-Koyukuk Census Area
Median17.33144 counties
United States36.8History

Top 40 counties, 2023

CSVChart (SVG)

New York CountyNew York County: 27,802.1 inhabitants per km²27,802.1Kings CountyKings County: 14,536 inhabitants per km²14,536Bronx CountyBronx County: 12,630 inhabitants per km²12,630Queens CountyQueens County: 8,220.2 inhabitants per km²8,220.2San Francisco CountySan Francisco County: 6,756.3 inhabitants per km²6,756.3Hudson CountyHudson County: 6,015.5 inhabitants per km²6,015.5Suffolk CountySuffolk County: 5,200.2 inhabitants per km²5,200.2Philadelphia CountyPhiladelphia County: 4,500.8 inhabitants per km²4,500.8District of ColumbiaDistrict of Columbia: 4,311.3 inhabitants per km²4,311.3Alexandria cityAlexandria city: 4,027.6 inhabitants per km²4,027.6Arlington CountyArlington County: 3,480.7 inhabitants per km²3,480.7Richmond CountyRichmond County: 3,323.8 inhabitants per km²3,323.8Falls Church cityFalls Church city: 2,793.8 inhabitants per km²2,793.8Baltimore cityBaltimore city: 2,709.1 inhabitants per km²2,709.1Essex CountyEssex County: 2,667.7 inhabitants per km²2,667.7Union CountyUnion County: 2,202.1 inhabitants per km²2,202.1Cook CountyCook County: 2,101.4 inhabitants per km²2,101.4Manassas Park cityManassas Park city: 2,082.4 inhabitants per km²2,082.4Nassau CountyNassau County: 1,884.7 inhabitants per km²1,884.7Denver CountyDenver County: 1,833.1 inhabitants per km²1,833.1St. Louis citySt. Louis city: 1,771.6 inhabitants per km²1,771.6Manassas cityManassas city: 1,693.9 inhabitants per km²1,693.9Charlottesville cityCharlottesville city: 1,689.5 inhabitants per km²1,689.5Norfolk cityNorfolk city: 1,687.6 inhabitants per km²1,687.6Bergen CountyBergen County: 1,599.1 inhabitants per km²1,599.1Fairfax cityFairfax city: 1,551 inhabitants per km²1,551Orange CountyOrange County: 1,532.9 inhabitants per km²1,532.9Richmond cityRichmond city: 1,487.1 inhabitants per km²1,487.1Milwaukee CountyMilwaukee County: 1,473.7 inhabitants per km²1,473.7Ramsey CountyRamsey County: 1,363.6 inhabitants per km²1,363.6Pinellas CountyPinellas County: 1,361.7 inhabitants per km²1,361.7Delaware CountyDelaware County: 1,216.4 inhabitants per km²1,216.4Winchester cityWinchester city: 1,170.3 inhabitants per km²1,170.3Dallas CountyDallas County: 1,166.3 inhabitants per km²1,166.3Lexington cityLexington city: 1,163.3 inhabitants per km²1,163.3Harrisonburg cityHarrisonburg city: 1,135.4 inhabitants per km²1,135.4Fairfax CountyFairfax County: 1,129.1 inhabitants per km²1,129.1Portsmouth cityPortsmouth city: 1,125 inhabitants per km²1,125Wayne CountyWayne County: 1,109.6 inhabitants per km²1,109.6DeKalb CountyDeKalb County: 1,108.5 inhabitants per km²1,108.5
inhabitants per km². Source: Invokely calculation with data from U.S. Census Bureau. Retrieved 2026-10-09.

Full ranking

RankCounties2023
inhabitants per km²		Change on 2022
1New York County27,802.1+2.4%
2Kings County14,536+0.4%
3Bronx County12,630-0.3%
4Queens County8,220.2+1%
5San Francisco County6,756.3+0.5%
6Hudson County6,015.5+1.7%
7Suffolk County5,200.2+0.8%
8Philadelphia County4,500.8-0.4%
9District of Columbia4,311.3+1.2%
10Alexandria city4,027.6+0.6%
11Arlington County3,480.7+0.4%
12Richmond County3,323.8+0.5%
13Falls Church city2,793.8+2%
14Baltimore city2,709.1-0.4%
15Essex County2,667.7+1.9%
16Union County2,202.1+1.9%
17Cook County2,101.4+0.3%
18Manassas Park city2,082.4-1.9%
19Nassau County1,884.70%
20Denver County1,833.1+1.4%
21St. Louis city1,771.6-1.2%
22Manassas city1,693.9+1.1%
23Charlottesville city1,689.5-0.6%
24Norfolk city1,687.6-0%
25Bergen County1,599.1+0.8%
26Fairfax city1,551+1.7%
27Orange County1,532.9-0.2%
28Richmond city1,487.1+0.8%
29Milwaukee County1,473.70%
30Ramsey County1,363.6-0.1%
31Pinellas County1,361.7+0.1%
32Delaware County1,216.4+0.4%
33Winchester city1,170.3-0.4%
34Dallas County1,166.3+0.9%
35Lexington city1,163.3+0.4%
36Harrisonburg city1,135.4-0.1%
37Fairfax County1,129.1+0.4%
38Portsmouth city1,125-0%
39Wayne County1,109.6-0.2%
40DeKalb County1,108.5+0.5%
41Harris County1,107.3+1.8%
42DuPage County1,092+0.3%
43Middlesex County1,090.1+1%
44Passaic County1,087+1.4%
45Fredericksburg city1,078.1+1.6%
46Cuyahoga County1,042.7-0.2%
47Hampton city1,028.2-0.6%
48Newport News city1,025.8-0.4%
49Tarrant County979.3+1.6%
50Franklin County969.6+0.8%
51Marion County955.8+0.6%
52Colonial Heights city945.2+0.9%
53Los Angeles County925.5-0.2%
54Camden County924.4+0.8%
55Greater Bridgeport Planning Region914.6+0.9%
56Broomfield County901.5+1.1%
57Westchester County894.7+0.4%
58Gwinnett County888.4+1.2%
59Cobb County888.2+0.9%
60Roanoke city887.5-0.2%
61Hennepin County880.7+0.1%
62Mecklenburg County865.5+2.2%
63Alameda County855-0%
64Hopewell city854.3+0.2%
65Montgomery County833.4+0.6%
66Orleans Parish832.8-1.4%
67Clayton County813.1+0.1%
68Bristol County805.5-0.1%
69Jefferson County795.4+0.7%
70Fulton County793.7+0.6%
71Hamilton County792+0.6%
72Middlesex County776.2+0.8%
73Rockland County770.1+1.3%
74Prince George's County763.9+0.3%
75St. Louis County751.6-0.2%
76Virginia Beach city715.3-0.3%
77Norfolk County712+0.4%
78Multnomah County711.1-0.3%
79Macomb County706.7+0.3%
80Douglas County701.8+0.9%
81Montgomery County695.6+0.5%
82Williamsburg city693.1+2.2%
83Salem city680.2-0.4%
84Radford city677.1+1.5%
85Mercer County673.1+1.1%
86Bexar County654.4+1.8%
87Allegheny County650-0.4%
88Suffolk County649.9+0.1%
89Orange County642.1+2.4%
90Broward County641.9+1.7%
91Essex County641+0.9%
92Sacramento County638.6+0.5%
93Honolulu County636-0.4%
94San Mateo County631.7+0.2%
95Lynchburg city629.6+0.6%
96Providence County627.4+0.6%
97Contra Costa County625.8+0.2%
98Lake County621+0.2%
99Salt Lake County618.4+0.9%
100Seminole County608.4+1.4%
101South Central Connecticut Planning Region601.7+0.5%
102Waynesboro city596.5+1.7%
103Hillsborough County587.9+2%
104Miami-Dade County567.7+2.2%
105Oakland County567.5+0.2%
106Petersburg city566.2-0.5%
107Prince William County565.9+0.8%
108Santa Clara County565.3+0.5%
109Anne Arundel County557.9+0.2%
110Wake County555.3+2.4%
111Henrico County555.3+0.3%
112Collin County553.9+3.8%
113Davidson County552.9+1.2%
114Jefferson Parish550.9-0.2%
115Baltimore County546.1-0.2%
116Monmouth County532.6+0.1%
117Duval County527.4+1.9%
118New Castle County526.2+0.9%
119Travis County525.5+1.3%
120Howard County517.5+0.1%
121Johnson County509.7+0.9%
122Summit County501.4-0%
123Bristol city501.1-1.2%
124Staunton city501.1-0.3%
125Martinsville city483.7+0.5%
126Lucas County483.4-0.3%
127New Hanover County481.6+1.6%
128Forsyth County470.3+2.2%
129Shelby County469.6-0.4%
130Tulsa County464.7+1.1%
131Jackson County460.4+0.6%
132Western Connecticut Planning Region457.3+0.7%
133Durham County451+1.4%
134Somerset County449+1%
135Montgomery County447.7+0.2%
136Denton County445.8+3.4%
137Davis County445.2+1.1%
138Oklahoma County441.8+0.8%
139Monroe County440.2-0.2%
140Fayette County439.9+0.6%
141Morris County432.9+1%
142Naugatuck Valley Planning Region427.8+0.8%
143Wyandotte County426+0.7%
144Lehigh County424.9+0.9%
145Clarke County422.5+0.4%
146Lee County418.2+2.2%
147King County416.6+0.8%
148Kenton County414.5+1%
149Bucks County413.8+0.2%
150Fort Bend County413.8+3.4%
151Bristol County409.2+0.8%
152Ocean County406.4+0.8%
153Rockwall County398.8+6.5%
154Covington city395.4-1.3%
155Buena Vista city394.5+0.3%
156Kent County393+0.1%
157Lake County389.9-0%
158Franklin city388.2+0.9%
159Lake County387.1+0.1%
160Kane County385.3+0.6%
161East Baton Rouge Parish382.9-0%
162Knox County380.9+1.2%
163Danville city379.4-0%
164Forsyth County372.5+1.1%
165Gloucester County370.1+0.6%
166Capitol Planning Region369+0.7%
167Galveston County368.7+1.3%
168Hamilton County364.6+1.8%
169Muscogee County360.4-0.3%
170Lafayette Parish360.1+0.9%
171Chesterfield County351.1+1.7%
172Erie County350.8-0.2%
173Polk County341.7+1.1%
174Anoka County341.5+1%
175Northampton County335.2+0.9%
176El Paso County332.7+0.6%
177Guilford County329.6+0.9%
178Pasco County328.3+4%
179Sarasota County327.9+1.7%
180Loudoun County327+1%
181Butler County326.6+1.2%
182Will County325.1+0.7%
183Sarpy County324.8+1.9%
184Arapahoe County322.2+1%
185Washington County321.9+0.6%
186Clark County320.6+1%
187Emporia city319.3-0.8%
188Galax city317.7+0.8%
189Poquoson city316.8-0.1%
190Plymouth County316.4+0.9%
191Newport County315.6-1.2%
192Henry County309.4+2.6%
193Dakota County307.9+1%
194Palm Beach County306.7+1.8%
195Schenectady County302.1+0.2%
196Kent County301.7+0.6%
197San Diego County300.70%
198Vanderburgh County298.2+0.4%
199Jefferson County292+0.2%
200Waukesha County290.5+0.7%
201Chesapeake city289.5+0.5%
202Hampden County289.2+0.2%
203Douglas County288.2+1.2%
204St. Charles County287.7+0.8%
205Rockdale County285.9+1.2%
206Chester County283.6+0.8%
207Washington County279.9+1%
208Greenville County275.6+2.2%
209Chatham County272.3+1.2%
210Hamilton County271.4+1.4%
211Kitsap County271.1-0.2%
212Montgomery County265.2+5.1%
213Cherokee County263.3+2.1%
214York County261.9-0.3%
215Gaston County258.9+1.8%
216Cabarrus County257.2+2%
217St. Lucie County255.1+4.7%
218Clay County252.4+1.1%
219Lorain County250.9+0.8%
220Stark County250.1-0%
221Brevard County245.7+2.2%
222Richmond County245.1-0.4%
223Fayette County245+1.2%
224Warren County243.3+1.3%
225Genesee County243.3-0.1%
226Bibb County242.9+0.4%
227Williamson County242.8+4.1%
228Campbell County239.5+0.6%
229Stafford County238.4+1.6%
230Kenosha County238.4-0%
231Albany County234.5+0.6%
232Harford County233.8+0.4%
233Onondaga County232.4-0.3%
234Allen County232+0.8%
235Manatee County231.5+3.3%
236Rutherford County230.9+2.2%
237Jefferson County230.8-0.2%
238St. Joseph County230.4+0.2%
239Racine County229.1+0.4%
240Lancaster County229.1+0.5%
241Barnstable County228.8+0.3%
242Santa Cruz County228.4-0.9%
243Burlington County228.1+1%
244Paulding County226+2.5%
245Barrow County223.8+4.3%
246San Joaquin County223.5+1.3%
247James City County223.5+1.1%
248Worcester County223.4+0.9%
249Bernalillo County223.3-0.1%
250Boone County221.7+1.4%

Showing the top 250 of 3144. The CSV download has every row.

Other periods

About this ranking

Resident population divided by land area in km². World Bank figures use mid-year population and land area excluding inland water.

United States: Census Bureau population estimates for 1 July divided by land area (water excluded) from the latest Census Gazetteer files. US tables often give people per square mile; multiply persons per km² by 2.59 to compare.

Every value in the ranking comes from the same publisher and the same period, so the counties are compared on one definition. Equal values share a rank.

How to cite

U.S. Census Bureau. Population Estimates Program resident population on 1 July divided by land area from the latest Census Gazetteer files, persons per km². https://www2.census.gov/programs-surveys/popest/datasets/2020-2025/. Retrieved 2026-10-09.

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Questions

Which county has the highest population density?

New York County, with 27,802.1 inhabitants per km² in 2023, according to the U.S. Census Bureau.

Which county has the lowest population density?

Yukon-Koyukuk Census Area, with 0 inhabitants per km² in 2023.

Where does this ranking come from?

Every value comes from one source and one period, so the places are comparable: U.S. Census Bureau, Population Estimates Program resident population on 1 July divided by land area from the latest Census Gazetteer files, persons per km². Retrieved 2026-10-09.

Population density: other rankings

US counties: more rankings