Jefferson County, Illinois

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Jefferson County
Jefferson County Courthouse in Mount Vernon.jpg
Math sir Edit this on Wikidata
Enwyd ar ôl Thomas Jefferson Edit this on Wikidata
Prifddinas Mount Vernon Edit this on Wikidata
Poblogaeth 38,644 Edit this on Wikidata
Sefydlwyd
  • 1819 Edit this on Wikidata
Daearyddiaeth
Gwlad Baner Unol Daleithiau America Unol Daleithiau America
Arwynebedd 1,512 km² Edit this on Wikidata
Talaith Illinois
Yn ffinio gyda Marion County, Franklin County Edit this on Wikidata
Cyfesurynnau 38.3°N 88.92°W Edit this on Wikidata

Sir yn nhalaith Illinois, Unol Daleithiau America yw Jefferson County. Cafodd ei henwi ar ôl Thomas Jefferson. Sefydlwyd Jefferson County, Illinois ym 1819 a sedd weinyddol y sir (a elwir weithiau'n 'dref sirol' neu'n 'brifddinas y sir') yw Mount Vernon, Illinois.

Mae ganddi arwynebedd o 1,512 cilometr sgwâr. Allan o'r arwynebedd hwn, y canran o ffurfiau dyfrol, megis llynnoedd ac afonydd, yw 2.2% . Yn ôl cyfrifiad y wlad, poblogaeth y sir yw: 38,644 (1 Gorffennaf 2013)[1]. Mewn cymhariaeth, yn 2016 roedd poblogaeth Caerdydd yn 361,462 a Rhyl tua 26,000.[2]

Mae'n ffinio gyda Marion County, Franklin County. Cedwir rhestr swyddogol o henebion ac adeiladau cofrestredig y sir yn: National Register of Historic Places listings in Illinois.

Map of Illinois highlighting Jefferson County.svg

Illinois in United States.svg

Map o leoliad y sir
o fewn Illinois		 Lleoliad Illinois
o fewn UDA

Ceir sawl sir o’r un enw gan gynnwys:


Trefi mwyaf[golygu | golygu cod y dudalen]

Mae gan y sir yma boblogaeth o tua 38,644 (1 Gorffennaf 2013)[1]. Dyma rai o'r dinasoedd, trefi neu gymunedau mwyaf poblog y sir:

Rhestr Wicidata:


Tref neu gymuned Poblogaeth Arwynebedd
Mount Vernon, Illinois 16269 38.125962[3]
Diwedd y rhestr a gynhyrchwyd yn otomatig o Wicidata.
gw • sg • go
Taleithiau Baner Unol Daleithiau America Unol Daleithiau America
gw • sg • go
Siroedd (a phrif drefi) o fewn talaith Illinois
Adams County, Alexander County, Bond County, Boone County, Brown County, Bureau County, Calhoun County, Carroll County, Cass County, Champaign County, Christian County, Clark County, Clay County, Clinton County, Coles County, Cook County, Crawford County, Cumberland County, DeKalb County, DeWitt County, Douglas County, DuPage County, Edgar County, Edwards County, Effingham County, Fayette County, Ford County, Franklin County, Fulton County, Gallatin County, Greene County, Grundy County, Hamilton County, Hancock County, Hardin County, Henderson County, Henry County, Iroquois County, Jackson County, Jasper County, Jefferson County, Jersey County, Jo Daviess County, Johnson County, Kane County, Kankakee County, Kendall County, Knox County, Lake County, LaSalle County, Lawrence County, Lee County, Livingston County, Logan County, Macon County, Macoupin County, Madison County, Marion County, Marshall County, Mason County, Massac County, McDonough County, McHenry County, McLean County, Menard County, Mercer County, Monroe County, Montgomery County, Morgan County, Moultrie County, Ogle County, Peoria County, Perry County, Piatt County, Pike County, Pope County, Pulaski County, Putnam County, Randolph County, Richland County, Rock Island County, Saline County, Sangamon County, Schuyler County, Scott County, Shelby County, St. Clair County, Stark County, Stephenson County, Tazewell County, Union County, Vermilion County, Wabash County, Warren County, Washington County, Wayne County, White County, Whiteside County, Will County, Williamson County, Winnebago County, Woodford County

Cyfeiriadau[golygu | golygu cod y dudalen]

  1. ↑ 1.0 1.1 Biwro Cyfrifiad yr Unol Daleithiau; http://www.census.gov/popest/data/counties/totals/2013/files/CO-EST2013-Alldata.csv.
  2. ↑ statswales.gov.wales; adalwyd 25 Mawrth 2020.
  3. ↑ 2016 U.S. Gazetteer Files
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