42420 can be classified socioeconomically as Lower Middle Class class compared to other ZIP Codes in Kentucky based on Median Household Income and Average Adjusted Gross Income. The majority race/ethnicity residing in 42420 is White. The majority race/ethnicity attending public schools in 42420 is White. The current unemployment level in 42420 is 5.6%.
| Population | 38,528 |
| Population Growth Rate | 0.00% |
| Population Density | 185 People per Square Mile |
| Total Households | 15,761 |
| Percentage High Income Households | 1.6% |
| Median Household Income (2021) | $52,142 |
| Average Adjusted Gross Income (2021) | $438,130 |
| Current Unemployment Rate (September 2025) | 5.6% |
| Sales Tax Rate (2025) | 6.0% |
| Majority Race/Ethnicty | White - 88.37% |
| Public School Majority Race/Ethnicty | White - 74.11% |
42420 Race/Ethnicty Breakdown
| Race/Ethnicty | Total | Percentage |
| White | 32,965 | 88.35% |
| Black | 2,852 | 7.64% |
| Hispanic | 1,226 | 3.29% |
| Asian | 177 | 0.47% |
| Native American | 83 | 0.22% |
| Hawaiian/Pac. Islander | 7 | 0.02% |
42420 Public School Race/Ethnicty Breakdown
| Race/Ethnicty | Total | Percentage |
| White | 4,598 | 81.81% |
| Black | 584 | 10.39% |
| Hispanic | 374 | 6.65% |
| Asian | 34 | 0.6% |
| Native American | 4 | 0.07% |
| Hawaiian/Pac. Islander | 26 | 0.46% |
42420 Educational Attainment Levels
| Highest Education Level Attained | Total | Percentage |
| Less Than 1 Year of College | 1,876 | 8.3% |
| Bachelor Degree | 2,776 | 12.28% |
| High School Diploma | 7,693 | 34.04% |
| No High School Diploma | 458 | 2.03% |
| GED or Alternate | 2,244 | 9.93% |
| 1 or More Years of College | 3,674 | 16.26% |
| Associates Degree | 2,060 | 9.12% |
| Masters Degree | 1,365 | 6.04% |
| Professional Degree | 356 | 1.58% |
| Doctorate Degree | 97 | 0.43% |