Jefferson County, Alabama
Sir yn nhalaith Alabama, Unol Daleithiau America yw Jefferson County. Cafodd ei henwi ar ôl Thomas Jefferson. Sefydlwyd Jefferson County, Alabama ym 1819 a sedd weinyddol y sir (a elwir weithiau'n 'dref sirol' neu'n 'brifddinas y sir') yw Birmingham, Alabama.
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| Math | sir  |
|---|---|
| Enwyd ar ôl | Thomas Jefferson |
| Prifddinas | Birmingham, Alabama |
| Poblogaeth | 674,721 |
| Sefydlwyd |
|
| Daearyddiaeth | |
| Gwlad |  Unol Daleithiau America |
| Arwynebedd | 2,911 km² |
| Talaith | Alabama |
| Yn ffinio gyda | Tuscaloosa County, Bibb County, Blount County, Walker County, St. Clair County, Shelby County |
| Cyfesurynnau | 33.52°N 86.81°W |
 | |
Mae ganddi arwynebedd o 2,911 cilometr sgwâr. Allan o'r arwynebedd hwn, y canran o ffurfiau dyfrol, megis llynnoedd ac afonydd, yw 1.1% . Yn ôl cyfrifiad y wlad, poblogaeth y sir yw: 674,721 (1 Ebrill 2020)[1]. Mewn cymhariaeth, yn 2016 roedd poblogaeth Caerdydd yn 361,462 a Rhyl tua 26,000.[2]
Mae'n ffinio gyda Tuscaloosa County, Bibb County, Blount County, Walker County, St. Clair County, Shelby County. Cedwir rhestr swyddogol o henebion ac adeiladau cofrestredig y sir yn: National Register of Historic Places listings in Jefferson County, Alabama.
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| Map o leoliad y sir o fewn Alabama |
Lleoliad Alabama o fewn UDA |
Ceir sawl sir o’r un enw gan gynnwys:
- Jefferson County, Alabama
- Jefferson County, Arkansas
- Jefferson County, Colorado
- Jefferson County, Efrog Newydd
- Jefferson County, Florida
- Jefferson County, Georgia
- Jefferson County, Gorllewin Virginia
- Jefferson County, Idaho
- Jefferson County, Illinois
- Jefferson County, Indiana
- Jefferson County, Iowa
- Jefferson County, Kansas
- Jefferson County, Kentucky
- Jefferson County, Mississippi
- Jefferson County, Missouri
- Jefferson County, Montana
- Jefferson County, Nebraska
Trefi mwyaf golygu
Mae gan y sir yma boblogaeth o tua 674,721 (1 Ebrill 2020)[1]. Dyma rai o'r dinasoedd, trefi neu gymunedau mwyaf poblog y sir:
Rhestr Wicidata:
| Tref neu gymuned | Poblogaeth | Arwynebedd |
|---|---|---|
| Birmingham, Alabama | 200733[3][4][4] | 384.944955[5] |
| Hoover, Alabama | 92606[4][4] | 124.861404[6] |
| Vestavia Hills, Alabama | 39102[4][4] | 52.408415[5] 50.834009[6] |
| Homewood, Alabama | 26414[4][4] | 21.828415[6] |
| Bessemer, Alabama | 26019[7][4][4] | 105.238474[5] |
| Mountain Brook, Alabama | 22461[4][4] | 33.291729[5] 33.17634[6] |
| Hueytown, Alabama | 16776[4][4] | 51.010412[5] 51.020156[6] |
| Center Point, Alabama | 16406[4] | 16.091013[5] |
| Gardendale, Alabama | 16044[4][4] | 59.380356[5] 58.40024[6] |
| Irondale, Alabama | 13497[4][4] | 45.278761[5] 45.249178[6] |
| McCalla, Alabama | 12965[4] | |
| Leeds, Alabama | 12324[4][4] | 58.796109[5] 59.783715[6] |
| Forestdale, Alabama | 10409[4][4] | 17.479591[5] |
| Clay, Alabama | 10291[4][4] | 25.872388[5] 25.885721[6] |
| Fairfield, Alabama | 10000[4][4] | 8.987176[5] 8.990474[8] 8.990474 |
Cyfeiriadau golygu
- ↑ 1.0 1.1 https://data.census.gov/cedsci/table?t=Populations%20and%20People&g=0100000US,%241600000&y=2020. Cyfrifiad yr Unol Daleithiau 2020. golygydd: Biwro Cyfrifiad yr Unol Daleithiau. dyddiad cyrchiad: 1 Ionawr 2022.
- ↑ statswales.gov.wales; adalwyd 25 Mawrth 2020.
- ↑ https://data.census.gov/cedsci/table?q=United%20States&tid=DECENNIALPL2020.P1
- ↑ 4.00 4.01 4.02 4.03 4.04 4.05 4.06 4.07 4.08 4.09 4.10 4.11 4.12 4.13 4.14 4.15 4.16 4.17 4.18 4.19 4.20 4.21 4.22 4.23 4.24 4.25 4.26 4.27 https://data.census.gov/cedsci/table?t=Populations%20and%20People&g=0100000US,%241600000&y=2020
- ↑ 5.00 5.01 5.02 5.03 5.04 5.05 5.06 5.07 5.08 5.09 5.10 5.11 2016 U.S. Gazetteer Files
- ↑ 6.0 6.1 6.2 6.3 6.4 6.5 6.6 6.7 6.8 https://www.census.gov/geographies/reference-files/time-series/geo/gazetteer-files.2010.html
- ↑ https://www.census.gov/programs-surveys/decennial-census/decade/2020/2020-census-main.html
- ↑ 2010 U.S. Gazetteer Files