2017 Growth Rate
0.35%
County Website
State
Founded
1780
County Seat
Louisville
Lat/Lng
Jefferson County, Kentucky's estimated population is 770,377 with a growth rate of 0.35% in the past year according to the most recent United States census data. Jefferson County, Kentucky is the largest county in Kentucky.
| Year | Population | Growth | Growth Rate |
| 2018 | 770,517 | 140 | 0.02% |
| 2017 | 770,377 | 2,666 | 0.35% |
| 2016 | 767,711 | 2,519 | 0.33% |
| 2015 | 765,192 | 3,219 | 0.42% |
| 2014 | 761,973 | 2,547 | 0.34% |
| 2013 | 759,426 | 7,561 | 1.01% |
| 2012 | 751,865 | 5,453 | 0.73% |
| 2011 | 746,412 | 4,362 | 0.59% |
| 2010 | 742,050 | 77,113 | 11.60% |
| 1990 | 664,937 | -20,067 | -2.93% |
| 1980 | 685,004 | -10,051 | -1.45% |
| 1970 | 695,055 | 84,108 | 13.77% |
| 1960 | 610,947 | 126,332 | 26.07% |
| 1950 | 484,615 | 99,223 | 25.75% |
| 1940 | 385,392 | 30,042 | 8.45% |
| 1930 | 355,350 | 68,981 | 24.09% |
| 1920 | 286,369 | 23,449 | 8.92% |
| 1910 | 262,920 | 30,371 | 13.06% |
| 1900 | 232,549 | 43,951 | 23.30% |
| 1890 | 188,598 | 42,588 | 29.17% |
| 1880 | 146,010 | 27,057 | 22.75% |
| 1870 | 118,953 | 29,549 | 33.05% |
| 1860 | 89,404 | 29,573 | 49.43% |
| 1850 | 59,831 | 23,485 | 64.62% |
| 1840 | 36,346 | 12,367 | 51.57% |
| 1830 | 23,979 | 3,211 | 15.46% |
| 1820 | 20,768 | 7,369 | 55.00% |
| 1810 | 13,399 | 4,645 | 53.06% |
| 1800 | 8,754 | 3,989 | 83.71% |
| 1790 | 4,765 | 0.00% |
| Race | Population |
| White | 552,798 |
| Black or African American | 162,364 |
| Two or More Races | 21,506 |
| Asian | 20,376 |
| Some Other Race | 5,866 |
| American Indian and Alaska Native | 1,092 |
| Native Hawaiian and Other Pacific Islander | 376 |
38
36.5
39.9
There are 591,936 adults, (114,227 of whom are seniors) in Jefferson County, Kentucky.
Female
394,987
51.67%
Male
369,391
48.33%
| Type | Count | Average Size | Owned |
| All | 309,888 | 2.42 | 61.5 |
| Married | 125,761 | 3.15 | 82.2 |
| Non Family | 125,230 | 1.25 | 47.8 |
| Female | 43,708 | 3.33 | 43.2 |
| Male | 15,189 | 3.3 | 56 |
| Education Attained | Count | Percentage |
| Less Than 9th Grade | 17,308 | 3.30% |
| 9th to 12th Grade | 36,744 | 7.00% |
| High School Graduate | 141,997 | 27.05% |
| Some College | 118,305 | 22.54% |
| Associates Degree | 41,127 | 7.84% |
| Bachelors Degree | 99,063 | 18.87% |
| Graduate Degree | 70,362 | 13.40% |
| Name | Total | High School | Bachelors |
| White | 384,286 | 350,745 | 137,551 |
| Black | 99,758 | 86,494 | 17,448 |
| Hispanic | 20,693 | 15,852 | 5,098 |
| Asian | 13,083 | 11,112 | 7,071 |
| Multiple Races | 7,382 | 6,892 | 2,498 |
| Other Race | 3,108 | 2,452 | 718 |
| Native American | 759 | 690 | 157 |
| Islander | 240 | 195 | 47 |
The highest rate of high school graduation is among multiple races people with a rate of 93.36%.
The highest rate of bachelors degrees is among asian people with a rate of 54.05%.
$36,985
Average Earnings
$41,944
Average Male
$32,067
Average Female
91.12% of Jefferson County, Kentucky residents speak only English, while 8.88% speak other languages. The non-English language spoken by the largest group is Spanish, which is spoken by 3.83% of the population.
| Name | Total | In Poverty | Poverty Rate |
| White | 513,023 | 51,630 | 10.06% |
| Black | 158,873 | 44,761 | 28.17% |
| Hispanic | 37,351 | 8,737 | 23.39% |
| Multiple | 20,817 | 4,914 | 23.61% |
| Asian | 20,247 | 3,152 | 15.57% |
| Other | 5,505 | 765 | 13.90% |
| Native | 1,085 | 300 | 27.65% |
15.00%
Overall Poverty Rate
13.49%
Male Poverty Rate
16.41%
Female Poverty Rate
The race most likely to be in poverty in Jefferson County, Kentucky is Black, with 28.17% below the poverty level.
The race least likely to be in poverty in Jefferson County, Kentucky is White, with 10.06% below the poverty level.
The poverty rate among those that worked full-time for the past 12 months was 2.66%. Among those working part-time, it was 19.51%, and for those that did not work, the poverty rate was 23.13%.
43.6%
Overall Marriage Rate
45.8%
Male Marriage Rate
41.7%
Female Marriage Rate
The age group where males are most likely to be married is Over 65, while the female age group most likely to be married is 45-54.
| Name | Veterans | % of Total |
| White | 36,735 | 8.26% |
| Black | 9,992 | 8.55% |
| Hispanic | 1,080 | 4.40% |
| 2 or More | 659 | 6.77% |
| Asian | 171 | 1.13% |
| Indian | 152 | 16.61% |
| Other | 138 | 3.59% |
| Hawaiian | 43 | 15.19% |
8.83%
Veteran Poverty Rate
29.17%
Veteran Disability Rate
65.9%
Labor Force Participation
61.6%
Employment Rate
6.4%
Unemployment Rate
Non citizens include legal permanent residents (green card holders), international students, temporary workers, humanitarian migrants, and illegal immigrants.
92.90%
Native Born
7.10%
Foreign Born
4.13%
Non Citizen
92.90% of Jefferson County, Kentucky residents were born in the United States, with 68.48% having been born in Kentucky. 4.13% of residents are not US citizens. Of those not born in the United States, the largest percentage are from Latin America.
| City | 2010 Census | 2016 Estimated | Growth | Growth Rate |
| Louisville/Jefferson County balance | 596332 | 616261 | 19929 | 3.34% |
| Jeffersontown | 27019 | 27352 | 333 | 1.23% |
| St. Matthews | 17501 | 18071 | 570 | 3.26% |
| Shively | 15262 | 15751 | 489 | 3.20% |
| Lyndon | 11002 | 11407 | 405 | 3.68% |
| Middletown | 7572 | 7845 | 273 | 3.61% |
| Douglass Hills | 5495 | 5696 | 201 | 3.66% |
| Prospect | 4692 | 4875 | 183 | 3.90% |
| Hurstbourne | 4221 | 4378 | 157 | 3.72% |
| Indian Hills | 2878 | 2979 | 101 | 3.51% |
| Graymoor-Devondale | 2871 | 2960 | 89 | 3.10% |
| Windy Hills | 2384 | 2470 | 86 | 3.61% |
| Anchorage | 2346 | 2425 | 79 | 3.37% |
| Hurstbourne Acres | 1811 | 1881 | 70 | 3.87% |
| St. Regis Park | 1457 | 1509 | 52 | 3.57% |
| Audubon Park | 1468 | 1505 | 37 | 2.52% |
| Worthington Hills | 1428 | 1481 | 53 | 3.71% |
| Beechwood Village | 1322 | 1367 | 45 | 3.40% |
| West Buechel | 1230 | 1273 | 43 | 3.50% |
| Barbourmeade | 1214 | 1256 | 42 | 3.46% |
| Coldstream | 1116 | 1157 | 41 | 3.67% |
| Heritage Creek | 1076 | 1124 | 48 | 4.46% |
| Northfield | 1020 | 1053 | 33 | 3.24% |
| Watterson Park | 976 | 1005 | 29 | 2.97% |
| Rolling Hills | 957 | 992 | 35 | 3.66% |
| Woodlawn Park | 944 | 978 | 34 | 3.60% |
| Langdon Place | 938 | 974 | 36 | 3.84% |
| Lynnview | 914 | 943 | 29 | 3.17% |
| Bellemeade | 865 | 894 | 29 | 3.35% |
| Plantation | 832 | 862 | 30 | 3.61% |
| Fincastle | 814 | 849 | 35 | 4.30% |
| Hollow Creek | 779 | 805 | 26 | 3.34% |
| Blue Ridge Manor | 745 | 772 | 27 | 3.62% |
| Meadow Vale | 736 | 760 | 24 | 3.26% |
| Woodland Hills | 719 | 741 | 22 | 3.06% |
| Green Spring | 717 | 738 | 21 | 2.93% |
| Seneca Gardens | 700 | 717 | 17 | 2.43% |
| Spring Valley | 658 | 676 | 18 | 2.74% |
| Brownsboro Farm | 650 | 668 | 18 | 2.77% |
| Strathmoor Village | 651 | 667 | 16 | 2.46% |
| Parkway Village | 650 | 665 | 15 | 2.31% |
| Rolling Fields | 646 | 663 | 17 | 2.63% |
| Westwood | 636 | 655 | 19 | 2.99% |
| Murray Hill | 582 | 607 | 25 | 4.30% |
| Wellington | 565 | 580 | 15 | 2.65% |
| Hollyvilla | 540 | 556 | 16 | 2.96% |
| Glenview | 528 | 542 | 14 | 2.65% |
| Bancroft | 494 | 509 | 15 | 3.04% |
| Houston Acres | 490 | 504 | 14 | 2.86% |
| Riverwood | 450 | 465 | 15 | 3.33% |
| Forest Hills | 447 | 462 | 15 | 3.36% |
| Norbourne Estates | 443 | 458 | 15 | 3.39% |
| Moorland | 434 | 447 | 13 | 3.00% |
| Briarwood | 432 | 444 | 12 | 2.78% |
| Meadowview Estates | 418 | 429 | 11 | 2.63% |
| Poplar Hills | 408 | 421 | 13 | 3.19% |
| Richlawn | 405 | 418 | 13 | 3.21% |
| Kingsley | 385 | 398 | 13 | 3.38% |
| Norwood | 370 | 383 | 13 | 3.51% |
| Old Brownsboro Place | 353 | 366 | 13 | 3.68% |
| Strathmoor Manor | 337 | 343 | 6 | 1.78% |
| Glenview Hills | 319 | 332 | 13 | 4.08% |
| Bellewood | 321 | 332 | 11 | 3.43% |
| Brownsboro Village | 319 | 329 | 10 | 3.13% |
| Creekside | 309 | 322 | 13 | 4.21% |
| Druid Hills | 308 | 320 | 12 | 3.90% |
| Goose Creek | 294 | 308 | 14 | 4.76% |
| Spring Mill | 287 | 301 | 14 | 4.88% |
| Broeck Pointe | 272 | 281 | 9 | 3.31% |
| Wildwood | 261 | 273 | 12 | 4.60% |
| Manor Creek | 226 | 231 | 5 | 2.21% |
| Crossgate | 224 | 229 | 5 | 2.23% |
| Glenview Manor | 192 | 194 | 2 | 1.04% |
| Thornhill | 180 | 182 | 2 | 1.11% |
| Maryhill Estates | 179 | 181 | 2 | 1.12% |
| Cambridge | 175 | 179 | 4 | 2.29% |
| Mockingbird Valley | 167 | 169 | 2 | 1.20% |
| Sycamore | 160 | 164 | 4 | 2.50% |
| Lincolnshire | 148 | 150 | 2 | 1.35% |
| Hills and Dales | 142 | 144 | 2 | 1.41% |
| Meadowbrook Farm | 136 | 137 | 1 | 0.74% |
| Hickory Hill | 114 | 115 | 1 | 0.88% |
| Ten Broeck | 103 | 104 | 1 | 0.97% |
| South Park View | 7 | 7 | 0 | 0.00% |