St. Mary's County
St. Mary's County has 115,126 residents across 24 ZIP codes with their own report. Median household income is $119,446, 15% above the Maryland figure. The typical owner-occupied home is valued at $407,600, and 37% of adults 25 and over hold a bachelor’s degree or higher.
Sources: U.S. Census Bureau, American Community Survey 2020–2024 5-year estimates · U.S. Census Bureau, 2024 Gazetteer and 2020 ZCTA relationship files
All 24 ZIP codes.
Colour shows where each zip code sits among the others in the table, from lowest to highest.
| ZIP code | Residents | Household income | Home value | Owners | Bachelor's+ | Broadband | Commute |
|---|---|---|---|---|---|---|---|
| 20606 | 291 | $88K | $451K | 85% | 30% | 85% | 58 min |
| 20609 | 714 | $118K | $568K | 89% | 21% | 92% | 55 min |
| 20618 | 1,705 | $106K | $355K | 83% | 17% | 77% | 43 min |
| 20619 | 14,212 | $119K | $377K | 65% | 50% | 98% | 30 min |
| 20620 | 1,115 | $166K | $391K | 96% | 25% | 96% | 23 min |
| 20621 | 958 | $-666667K | $481K | 100% | 16% | 66% | 47 min |
| 20624 | 796 | $105K | $431K | 88% | 12% | 82% | 39 min |
| 20626 | 284 | $-666667K | $-666667K | 84% | 19% | 70% | 62 min |
| 20628 | 503 | $-666667K | $546K | 83% | 53% | 100% | 26 min |
| 20630 | 559 | $233K | $618K | 75% | 70% | 100% | 35 min |
| 20634 | 7,088 | $139K | $342K | 65% | 40% | 96% | 25 min |
| 20636 | 10,486 | $164K | $474K | 88% | 34% | 99% | 32 min |
| 20650 | 16,094 | $143K | $482K | 79% | 45% | 94% | 32 min |
| 20653 | 26,852 | $103K | $353K | 57% | 35% | 90% | 24 min |
| 20659 | 24,324 | $122K | $417K | 89% | 28% | 93% | 44 min |
| 20667 | 150 | $-666667K | $-666667K | 100% | 78% | 100% | 20 min |
| 20670 | 2,046 | $70K | $-666667K | 0% | 30% | 100% | 10 min |
| 20674 | 769 | $172K | $592K | 88% | 53% | 100% | 36 min |
| 20680 | 663 | $-666667K | $398K | 40% | 29% | 84% | 13 min |
| 20684 | 802 | $180K | $361K | 93% | 50% | 93% | 24 min |
| 20686 | 971 | $-666667K | $-666667K | – | 100% | – | 14 min |
| 20687 | 415 | $-666667K | $458K | 91% | 44% | 100% | 33 min |
| 20690 | 1,077 | $123K | $380K | 75% | 39% | 91% | 41 min |
| 20692 | 505 | $201K | $468K | 100% | 59% | 100% | 19 min |
Source: U.S. Census Bureau, American Community Survey 2020–2024 5-year estimates
People.
115,126 residents in 42,436 households, next to the Maryland figure.
Source: U.S. Census Bureau, American Community Survey 2020–2024 5-year estimates
Homes.
46,385 housing units; the median owner-occupied home is valued at $407,600 (±$8,365).
When homes were built
Source: U.S. Census Bureau, American Community Survey 2020–2024 5-year estimates
Income and work.
Household income and work, in 2024 dollars; median household income ±$4,480.
The poverty rate uses the federal poverty thresholds, which vary with family size. It says nothing on its own about what a neighborhood is like to live in.
Source: U.S. Census Bureau, American Community Survey 2020–2024 5-year estimates
Getting around.
How workers aged 16 and over get to work, and how long it takes.
Source: U.S. Census Bureau, American Community Survey 2020–2024 5-year estimates
Internet.
Home internet subscriptions.
American Community Survey figures are estimates from a rolling sample, averaged over 2020–2024. Each comes with a margin of error, which is wider in places with fewer people.
Source: U.S. Census Bureau, American Community Survey 2020–2024 5-year estimates