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Harford County, MD Demographics

Harford County, MD is the 8th most populous of 24 counties in Maryland, with 260,924 residents across 437 square miles. That is about 597 people per square mile.

At the 2020 census

Population 260,924
Land area 437 sq mi
Density 597 / sq mi

Data: 2020 Census · American Community Survey 2024

How Harford County compares to the US

We're computing this county's comparison table — check back shortly. Population, land area, and density above are already exact.

Central Location: Harford County, MD

Measured from the county's main population center using 2020 census blocks.

We're computing the drive-time and radius areas around Harford County, MD — check back shortly. Meanwhile you can drop a pin anywhere in the radius tool.

Census tracts in Harford County, MD

Name Population Sq mi Per sq mi
Census Tract 3012.02 7,954 2.2 3,616
Census Tract 3016.02 7,749 2.5 3,093
Census Tract 3014.01 7,709 2.2 3,447
Census Tract 3013.02 7,700 1.0 7,904
Census Tract 3064 7,563 4.2 1,795
Census Tract 3051 7,557 48.9 155
Census Tract 3035.01 7,526 3.3 2,274
Census Tract 3036.03 7,131 2.8 2,540
Census Tract 3033 6,834 11.8 580
Census Tract 3042.02 6,821 19.0 359
Census Tract 3016.01 6,721 2.0 3,374
Census Tract 3042.01 6,364 22.9 278
Census Tract 3031.01 6,361 14.3 444
Census Tract 3036.05 6,338 1.0 6,217
Census Tract 3032.01 5,937 14.4 411
Census Tract 3038.03 5,292 1.2 4,305
Census Tract 3017.03 5,049 3.8 1,331
Census Tract 3013.01 5,009 5.8 870
Census Tract 3034 4,910 7.4 665
Census Tract 3041.01 4,564 23.7 193
Census Tract 3032.04 4,552 1.6 2,801
Census Tract 3028.02 4,520 2.2 2,084
Census Tract 3029.02 4,491 1.6 2,880
Census Tract 3012.04 4,476 1.0 4,290
Census Tract 3028.01 4,436 3.8 1,163
Census Tract 3012.05 4,186 0.7 6,025
Census Tract 3011.02 4,169 9.2 452
Census Tract 3011.06 4,125 1.2 3,421
Census Tract 3024 4,099 8.3 492
Census Tract 3011.05 3,980 0.7 5,799
Census Tract 3032.06 3,975 1.3 2,983
Census Tract 3036.02 3,963 1.5 2,591
Census Tract 3011.07 3,961 1.0 3,813
Census Tract 3061 3,898 1.3 2,983
Census Tract 3041.02 3,875 33.3 116
Census Tract 3037 3,867 13.1 295
Census Tract 3011.08 3,737 2.0 1,912
Census Tract 3017.07 3,644 2.2 1,631
Census Tract 3035.02 3,539 1.9 1,867
Census Tract 3017.04 3,492 1.0 3,539
Census Tract 3032.03 3,393 1.0 3,240
Census Tract 3036.06 3,269 1.3 2,569
Census Tract 3063 3,124 5.8 538
Census Tract 3017.06 3,078 1.4 2,147
Census Tract 3022 2,972 10.9 272
Census Tract 3029.01 2,887 1.6 1,781
Census Tract 3031.02 2,864 8.0 357
Census Tract 3014.02 2,823 1.1 2,543
Census Tract 3017.05 2,755 1.4 1,930
Census Tract 3038.01 2,737 1.1 2,388
Census Tract 3052 2,610 15.6 167
Census Tract 3039 2,383 0.8 3,003
Census Tract 3062 2,174 0.7 2,933
Census Tract 3021 2,141 17.2 125
Census Tract 3053 2,069 15.7 132
Census Tract 3012.01 2,033 6.8 298
Census Tract 3038.02 2,013 0.5 3,964
Census Tract 3065 1,851 59.0 31
Census Tract 3032.05 1,674 3.5 477

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About this page

This page shows demographics for a US county from the 2020 census and the American Community Survey: population, land area, density, urban share, and how the county compares to national averages for income, housing, age, and more.

Counties subdivide into census tracts, listed below with their populations. The drive-time and radius tables measure the population around the county's main population center.

Read how BlockAtlas computes population within an area →