USA.com / Maryland / Montgomery County / Rockville, MD / 20850 / Population and Races / Historical First Ancestry Data
20850 Zip Code Historical First Ancestry Data
ACS 2010-2014 data
42,629 (91.26%) out of the total population of 46,711 reported first ancestry.
20850 Zip Code | % of the Total Population | Maryland | U.S. | |
Arab | 375 | 0.80%, see rank | 0.48% | 0.56% |
Czech | 224 | 0.48%, see rank | 0.38% | 0.47% |
Danish | 179 | 0.38%, see rank | 0.18% | 0.42% |
Dutch | 256 | 0.55%, see rank | 0.86% | 1.40% |
English | 3,227 | 6.91%, see rank | 7.82% | 8.02% |
French | 853 | 1.83%, see rank | 1.89% | 3.34% |
German | 5,368 | 11.49%, see rank | 14.69% | 15.03% |
Greek | 311 | 0.67%, see rank | 0.59% | 0.41% |
Hungarian | 347 | 0.74%, see rank | 0.41% | 0.46% |
Irish | 4,540 | 9.72%, see rank | 11.24% | 10.80% |
Italian | 2,233 | 4.78%, see rank | 5.21% | 5.52% |
Norwegian | 219 | 0.47%, see rank | 0.51% | 1.42% |
Polish | 1,315 | 2.82%, see rank | 3.31% | 3.01% |
Portuguese | 104 | 0.22%, see rank | 0.18% | 0.44% |
Russian | 2,511 | 5.38%, see rank | 1.33% | 0.92% |
Scotch-Irish | 448 | 0.96%, see rank | 0.75% | 0.99% |
Scottish | 939 | 2.01%, see rank | 1.63% | 1.72% |
Subsaharan African | 1,118 | 2.39%, see rank | 3.62% | 0.95% |
Swedish | 295 | 0.63%, see rank | 0.58% | 1.27% |
Swiss | 52 | 0.11%, see rank | 0.20% | 0.30% |
Ukrainian | 287 | 0.61%, see rank | 0.37% | 0.31% |
American | 1,928 | 4.13%, see rank | 5.14% | 7.12% |
Welsh | 288 | 0.62%, see rank | 0.63% | 0.57% |
ACS 2008-2012 data
42,003 (92.39%) out of the total population of 45,464 reported first ancestry.
20850 Zip Code | % of the Total Population | Maryland | U.S. | |
Arab | 311 | 0.68%, see rank | 0.46% | 0.53% |
Czech | 216 | 0.48%, see rank | 0.43% | 0.50% |
Danish | 151 | 0.33%, see rank | 0.21% | 0.45% |
Dutch | 346 | 0.76%, see rank | 0.95% | 1.51% |
English | 3,764 | 8.28%, see rank | 8.43% | 8.53% |
French | 739 | 1.63%, see rank | 2.08% | 3.54% |
German | 5,036 | 11.08%, see rank | 15.67% | 15.79% |
Greek | 411 | 0.90%, see rank | 0.59% | 0.42% |
Hungarian | 357 | 0.79%, see rank | 0.43% | 0.48% |
Irish | 4,683 | 10.30%, see rank | 11.84% | 11.36% |
Italian | 1,946 | 4.28%, see rank | 5.34% | 5.66% |
Norwegian | 255 | 0.56%, see rank | 0.51% | 1.46% |
Polish | 1,237 | 2.72%, see rank | 3.44% | 3.13% |
Portuguese | 137 | 0.30%, see rank | 0.18% | 0.46% |
Russian | 2,180 | 4.80%, see rank | 1.45% | 0.97% |
Scotch-Irish | 634 | 1.39%, see rank | 0.84% | 1.07% |
Scottish | 986 | 2.17%, see rank | 1.70% | 1.81% |
Subsaharan African | 1,239 | 2.73%, see rank | 3.17% | 0.93% |
Swedish | 422 | 0.93%, see rank | 0.61% | 1.34% |
Swiss | 69 | 0.15%, see rank | 0.22% | 0.31% |
Ukrainian | 193 | 0.42%, see rank | 0.40% | 0.31% |
American | 1,530 | 3.37%, see rank | 4.77% | 6.72% |
Welsh | 268 | 0.59%, see rank | 0.69% | 0.60% |
US Census 2000 data
29,549 (88.06%) out of the total population of 33,557 reported first ancestry.
20850 Zip Code | % of the Total Population | Maryland | U.S. | |
Arab | 296 | 0.88%, see rank | 0.32% | 0.36% |
Czech | 87 | 0.26%, see rank | 0.21% | 0.27% |
Danish | 72 | 0.21%, see rank | 0.13% | 0.30% |
Dutch | 170 | 0.51%, see rank | 0.52% | 0.91% |
English | 2,056 | 6.13%, see rank | 6.01% | 5.91% |
French | 552 | 1.64%, see rank | 1.31% | 2.39% |
German | 2,102 | 6.26%, see rank | 10.82% | 10.81% |
Greek | 189 | 0.56%, see rank | 0.51% | 0.34% |
Hungarian | 78 | 0.23%, see rank | 0.27% | 0.32% |
Irish | 2,471 | 7.36%, see rank | 7.46% | 6.85% |
Italian | 1,162 | 3.46%, see rank | 4.06% | 4.59% |
Norwegian | 141 | 0.42%, see rank | 0.35% | 1.15% |
Polish | 757 | 2.26%, see rank | 2.44% | 2.24% |
Portuguese | 63 | 0.19%, see rank | 0.12% | 0.33% |
Russian | 1,143 | 3.41%, see rank | 1.10% | 0.68% |
Scotch-Irish | 256 | 0.76%, see rank | 0.95% | 1.17% |
Scottish | 439 | 1.31%, see rank | 1.10% | 1.12% |
Subsaharan African | 428 | 1.28%, see rank | 1.81% | 0.61% |
Swedish | 238 | 0.71%, see rank | 0.36% | 0.87% |
Swiss | 17 | 0.05%, see rank | 0.13% | 0.19% |
Ukrainian | 130 | 0.39%, see rank | 0.28% | 0.24% |
American | 1,584 | 4.72%, see rank | 5.77% | 7.33% |
Welsh | 107 | 0.32%, see rank | 0.38% | 0.31% |
* ACS stands for U.S. Census American Community Survey. According to the U.S. Census, if the date is a range, you can interpret the data as an average of the period of time.