Jefferson County, Colorado
Sir yn nhalaith Colorado, Unol Daleithiau America yw Jefferson County. Cafodd ei henwi ar ôl Thomas Jefferson. Sefydlwyd Jefferson County, Colorado ym 1861 a sedd weinyddol y sir (a elwir weithiau'n 'dref sirol' neu'n 'brifddinas y sir') yw Golden.
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| Math | sir  |
|---|---|
| Enwyd ar ôl | Thomas Jefferson |
| Prifddinas | Golden |
| Poblogaeth | 582,910 |
| Sefydlwyd |
|
| Daearyddiaeth | |
| Gwlad |  Unol Daleithiau America |
| Arwynebedd | 2,015 km² |
| Talaith | Colorado |
| Yn ffinio gyda | Boulder County, Swydd Broomfield, Adams County, Denver County, Arapahoe County, Douglas County, Teller County, Park County, Clear Creek County, Gilpin County |
| Cyfesurynnau | 39.59°N 105.25°W |
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Mae ganddi arwynebedd o 2,015 cilometr sgwâr. Allan o'r arwynebedd hwn, y canran o ffurfiau dyfrol, megis llynnoedd ac afonydd, yw 1.3% . Yn ôl cyfrifiad y wlad, poblogaeth y sir yw: 582,910 (1 Ebrill 2020)[1]. Mewn cymhariaeth, yn 2016 roedd poblogaeth Caerdydd yn 361,462 a Rhyl tua 26,000.[2]
Mae'n ffinio gyda Boulder County, Swydd Broomfield, Adams County, Denver County, Arapahoe County, Douglas County, Teller County, Park County, Clear Creek County, Gilpin County. Cedwir rhestr swyddogol o henebion ac adeiladau cofrestredig y sir yn: National Register of Historic Places listings in Jefferson County, Colorado.
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| Map o leoliad y sir o fewn Colorado |
Lleoliad Colorado 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
golyguMae gan y sir yma boblogaeth o tua 582,910 (1 Ebrill 2020)[1]. Dyma rai o'r dinasoedd, trefi neu gymunedau mwyaf poblog y sir:
Rhestr Wicidata:
| Tref neu gymuned | Poblogaeth | Arwynebedd |
|---|---|---|
| Lakewood | 155984[3] | 114.095351[4] 114.11638[5] |
| Arvada | 124402[3] | 101.930253[4] 92.616061[5] |
| Westminster | 116317[3] | 88.188148[4] 87.669884[5] |
| Littleton | 45652[3] | 35.795221[4] 35.93482[6] |
| Ken Caryl | 33811[3] | 25.196853[4] 25.265756[6] |
| Wheat Ridge | 32398[3] | 24.897337[4] 24.727368[6] |
| Columbine | 25229[3] | 17.491186[4] 17.551188[6] |
| Golden | 20399[3] | 26.054262[4] 25.949414[6] |
| Evergreen | 9307[3] | 30.056471[4] 30.047808[6] |
| Applewood | 7833[3] | 11.672446[4] 11.522875[6] |
| Edgewater | 5005[3] | 1.807183[4] 1.812918[5] |
| West Pleasant View | 4327[3] | 1.5 3.85925[6] |
| Genesee | 3610[3] | 17.257058[4] 17.256844[6] |
| Coal Creek | 2494[3] | 9.4 24.363018[6] |
| Indian Hills | 1474[3] | 14.075246[4] 12.118058[6] |
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.
- ↑ 3.00 3.01 3.02 3.03 3.04 3.05 3.06 3.07 3.08 3.09 3.10 3.11 3.12 3.13 3.14 https://data.census.gov/cedsci/table?t=Populations%20and%20People&g=0100000US,%241600000&y=2020
- ↑ 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 2016 U.S. Gazetteer Files
- ↑ 5.0 5.1 5.2 5.3 https://www.census.gov/geographies/reference-files/time-series/geo/gazetteer-files.2010.html
- ↑ 6.00 6.01 6.02 6.03 6.04 6.05 6.06 6.07 6.08 6.09 6.10 2010 U.S. Gazetteer Files