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Jefferson County – Ancestry

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Ancestry refers to the lineage or descent of a person, family, or group, tracing back through generations to identify their origins, heritage, and familial connections. It encompasses the genetic, cultural, and historical ties that link individuals to their forebears, shaping their identity and sense of belonging. Ancestry is a multifaceted concept, intertwining biology, genealogy, history, and culture, and it plays a significant role in how people understand themselves and their place in the world.

At its core, ancestry is rooted in genetics. Each individual inherits a unique combination of DNA from their parents, who in turn inherited their DNA from their own ancestors. This genetic material carries information about physical traits, predispositions to certain health conditions, and even behavioral tendencies. Advances in genetic testing, such as DNA analysis, have made it possible for individuals to trace their biological ancestry with remarkable precision. Companies like 23andMe and AncestryDNA offer services that analyze genetic markers to provide insights into a person's ethnic composition and geographic origins, often revealing surprising connections to distant relatives or previously unknown heritage.

Beyond genetics, ancestry is deeply tied to genealogy, the study of family history and lineage. Genealogical research involves constructing family trees, documenting relationships, and uncovering historical records such as birth certificates, marriage licenses, census data, and immigration documents. This process often reveals stories of migration, resilience, and adaptation, offering a window into the lives of ancestors and the challenges they faced. For many, genealogy is a way to honor their forebears and preserve their legacy for future generations.

Cultural ancestry is another critical dimension, encompassing the traditions, languages, customs, and values passed down through generations. It connects individuals to their ethnic or national heritage, shaping their cultural identity and worldview. For example, someone with Irish ancestry might celebrate St. Patrick's Day, learn traditional Irish dance, or explore the Gaelic language, while someone with Japanese ancestry might practice tea ceremonies, study calligraphy, or observe Obon festivals. Cultural ancestry fosters a sense of continuity and belonging, linking individuals to a broader community with shared experiences and values.

Historical ancestry delves into the broader context of a family's or group's past, including significant events, social conditions, and historical movements that shaped their lives. For instance, the transatlantic slave trade, the Irish Potato Famine, or the Jewish diaspora have profoundly influenced the ancestry of millions of people, leaving lasting imprints on their descendants' identities. Understanding historical ancestry often involves grappling with complex narratives of triumph and tragedy, resilience and oppression, and the interplay of individual and collective experiences.

Ancestry also has a deeply personal and emotional dimension. For many, exploring their ancestry is a journey of self-discovery, offering insights into who they are and where they come from. It can foster a sense of pride, connection, and continuity, as well as a deeper appreciation for the struggles and achievements of those who came before. At the same time, it can raise questions about identity, belonging, and the complexities of heritage, particularly for individuals with mixed or multicultural backgrounds.

In a globalized world, ancestry serves as a bridge between the past and the present, connecting individuals to their roots while also highlighting the interconnectedness of human history. It underscores the diversity and richness of human experience, reminding us that every person's story is part of a larger tapestry woven over centuries. Whether through genetic testing, genealogical research, cultural practices, or historical exploration, ancestry offers a profound way to understand ourselves and our place in the world.

A diversification score measures the diversity of ancestries in the county. As the value appoaches 100, ancestry diversity decreases and therefore increasing the risk of a lack of cultural diversity. The ancestry diversification score for this county is:

9.97

Most common ancestry not including "Unknown" is:

German

 
Ancestry Report Part I
DescriptionTotal Population American Native American Hawaiian Carribean Mexican Central American South American Other Hispanic British Dutch French German Italian

Jefferson County582,75416,4122,5284053,28060,7822,2553,21921,21347,6335,6358,25675,62820,501
Colorado (in 000's)5,9811683295791343392473984674617152
National (in 000's)340,98116,5892,16560710,91237,9175,6004,1394,87718,3212,0964,23427,00610,025
Denver County734,72412,9683,6911,2987,655152,8166,3916,60333,24137,5784,0687,62053,10017,452
Arapahoe County662,50917,5722,4671,4888,33391,8348,4195,85619,75638,8774,7807,09958,55513,839
Adams County543,0299,7582,7107754,372175,8295,3123,26232,42918,1362,2784,40635,4329,249
Douglas County393,76712,2029572823,04922,2801,1123,0457,88737,1864,1336,52950,87513,261
Boulder County329,3847,7561,0782242,63533,9652,1542,5226,36028,3642,8515,01135,6009,323
Broomfield County78,1811,906184686067,3022733931,8486,3676851,3759,4872,771
Teller County25,6589801151010487141118122,0002886353,583608
Park County17,843804101912078216212911,8032252513,101694
Clear Creek County9,4944913471673390271559571151761,154351
Gilpin County5,9524493554529864217460955113743153
 
Per Cent to Total PopulationDiversity
Index
 

Jefferson County9.972.820.430.070.5610.430.390.553.648.170.971.4212.983.52
Colorado10.752.810.530.140.9515.260.720.664.136.660.771.2410.312.53
National10.644.870.640.183.2011.121.641.211.435.370.611.247.922.94
Denver County12.451.770.500.181.0420.800.870.904.525.110.551.047.232.38
Arapahoe County10.762.650.370.221.2613.861.270.882.985.870.721.078.842.09
Adams County16.691.800.500.140.8132.380.980.605.973.340.420.816.521.70
Douglas County9.773.100.240.070.775.660.280.772.009.441.051.6612.923.37
Boulder County9.932.350.330.070.8010.310.650.771.938.610.871.5210.812.83
Broomfield County9.162.440.240.090.789.340.350.502.368.140.881.7612.133.54
Teller County12.483.820.450.040.413.390.020.433.167.791.122.4713.962.37
Park County11.804.510.570.050.674.380.090.121.6310.101.261.4117.383.89
Clear Creek County10.795.170.360.071.763.570.000.281.6310.081.211.8512.163.70
Gilpin County10.367.540.590.080.765.011.080.351.2410.230.921.9012.482.57
 
Comparisons to State Norms % to Total >= 150% % to Total < 50% 

Jefferson County 100.0682.0548.8359.4468.3653.7983.9488.10122.74125.12114.04125.84138.80
Colorado 100.00100.00100.00100.00100.00100.00100.00100.00100.00100.00100.00100.00100.00
National 172.86120.11124.97337.9372.88228.28184.4534.6280.6879.5499.9676.80116.00
Denver County 62.7195.02124.12110.02136.32120.91136.56109.5076.8071.6483.4970.0893.72
Arapahoe County 94.2470.43157.79132.8290.85176.64134.3172.1788.1293.3686.2685.7082.42
Adams County 63.8594.39100.2785.02212.22135.9891.28144.5450.1554.2865.3163.2767.20
Douglas County 110.1045.9750.3181.7737.0839.25117.5148.48141.81135.82133.47125.28132.87
Boulder County 83.6661.9047.7884.4867.5890.90116.3546.73129.31112.00122.46104.80111.68
Broomfield County 86.6244.5261.1181.8561.2148.5476.3857.21122.29113.37141.57117.67139.84
Teller County 135.7184.7727.3842.8022.252.1765.7476.60117.05145.24199.22135.4193.49
Park County 160.10107.0635.4471.0228.7212.4617.8839.47151.74163.17113.24168.52153.46
Clear Creek County 183.7567.7451.80185.7523.400.0043.2139.51151.37156.74149.23117.86145.87
Gilpin County 268.03111.2259.0279.8432.81149.4753.6130.09153.65119.57152.83121.05101.42
 
Comparisons to National Norms % to Total >= 150% % to Total < 50% 

Jefferson County 57.8968.3239.0717.5993.8023.5645.51254.50152.13157.31114.08163.86119.66
Colorado 57.8583.2680.0229.59137.2143.8154.22288.88123.94125.72100.04130.2186.21
National 100.00100.00100.00100.00100.00100.00100.00100.00100.00100.00100.00100.00100.00
Denver County 36.2879.1199.3232.56187.0452.9774.04316.3295.1990.0783.5291.2580.79
Arapahoe County 54.5258.64126.2739.30124.6577.3872.82208.49109.22117.3786.29111.6071.05
Adams County 36.9478.5980.2325.16291.1859.5749.49417.5362.1668.2465.3482.3857.93
Douglas County 63.6938.2740.2624.2050.8817.2063.71140.04175.76170.75133.52163.13114.55
Boulder County 48.4051.5438.2325.0092.7339.8263.08135.00160.27140.81122.51136.4796.27
Broomfield County 50.1137.0648.9024.2283.9921.2641.41165.26151.57142.54141.62153.22120.56
Teller County 78.5170.5821.9112.6730.530.9535.64221.26145.08182.60199.29176.3280.60
Park County 92.6289.1428.3621.0239.415.469.70114.03188.07205.14113.28219.44132.29
Clear Creek County 106.3056.4041.4554.9732.110.0023.43114.15187.61197.06149.28153.47125.75
Gilpin County 155.0692.6047.2323.6345.0265.4829.0786.93190.43150.33152.88157.6287.43
 
Ancestry Report Part II
DescriptionTotal Population Polish Scandi­navian Scotish Irish Other European Chinese Japanese Korean South Central Asian South East Asian Other Asian Middle Eastern Other Ancestry Unknown

Jefferson County582,7549,14524,75552,13727,1053,3421,5851,5722,6606,6911,1882,48786,26096,080
Colorado (in 000's)5,98172195440237331224416027251,049972
National (in 000's)340,9815,2116,56222,89210,8864,3408331,7585,3296,0541,4412,14472,84556,198
Denver County734,7249,74017,99547,53731,2924,1791,8862,1995,1638,9764,6274,958159,90391,788
Arapahoe County662,5097,08519,19044,91728,4156,5841,7427,0239,65010,9005,8225,545141,55395,208
Adams County543,0294,0419,91622,74810,5862,6149561,5033,3649,8704,3191,36998,40969,386
Douglas County393,7675,83518,55135,75922,0903,0337302,2808,3174,7661,8761,99158,21767,524
Boulder County329,3845,51813,25328,90519,0445,0501,1141,6323,2282,5871,8101,98647,36760,047
Broomfield County78,1811,5523,0376,5534,0981,2312083121,4941,67662655212,60410,973
Teller County25,6583401,3913,2571,11728726131937273,0346,241
Park County17,8432577991,7131,0161022712051161,9233,790
Clear Creek County9,494795051,3306542010327130199931,859
Gilpin County5,9521443357831921562182307521,027
 
Per Cent to Total PopulationDiversity
Index
 

Jefferson County9.971.574.258.954.650.570.270.270.461.150.200.4314.8016.49
Colorado10.751.203.267.363.960.550.190.400.681.000.450.4217.5416.25
National10.641.531.926.713.191.270.240.521.561.780.420.6321.3616.48
Denver County12.451.332.456.474.260.570.260.300.701.220.630.6721.7612.49
Arapahoe County10.761.072.906.784.290.990.261.061.461.650.880.8421.3714.37
Adams County16.690.741.834.191.950.480.180.280.621.820.800.2518.1212.78
Douglas County9.771.484.719.085.610.770.190.582.111.210.480.5114.7817.15
Boulder County9.931.684.028.785.781.530.340.500.980.790.550.6014.3818.23
Broomfield County9.161.993.888.385.241.570.270.401.912.140.800.7116.1214.04
Teller County12.481.335.4212.694.350.110.030.100.050.070.140.1111.8224.32
Park County11.801.444.489.605.690.060.010.150.010.110.290.0910.7821.24
Clear Creek County10.790.835.3214.016.890.210.110.340.070.140.000.2010.4619.58
Gilpin County10.362.425.6313.163.230.250.100.030.020.130.390.0012.6317.25
 
Comparisons to State Norms % to Total >= 150% % to Total < 50% 

Jefferson County 130.68130.37121.55117.37104.19139.6867.6267.17114.6545.09100.8684.38101.43
Colorado 100.00100.00100.00100.00100.00100.00100.00100.00100.00100.00100.00100.00100.00
National 127.2659.0691.2180.56231.25125.52129.24229.95177.2993.49148.62121.79101.40
Denver County 110.3975.1787.90107.47103.34131.8375.03103.40121.99139.28159.48124.0776.86
Arapahoe County 89.0588.8992.11108.23180.56135.04265.75214.34164.28194.35197.81121.8088.41
Adams County 61.9756.0456.9149.1987.4690.4169.3991.16181.49175.9059.58103.3178.61
Douglas County 123.40144.58123.38141.56139.9495.21145.16310.80120.86105.37119.5084.28105.50
Boulder County 139.50123.48119.22145.90278.56173.69124.21144.2178.42121.53142.5081.98112.16
Broomfield County 165.31119.22113.88132.27286.07136.63100.04281.20214.06177.08166.8791.9086.35
Teller County 110.35166.38172.46109.8519.8314.0125.407.467.3931.8924.8767.41149.65
Park County 119.94137.43130.43143.6910.185.7637.930.8211.1963.2121.1961.44130.68
Clear Creek County 69.29163.24190.32173.8338.2754.0984.5010.8513.670.0047.3059.63120.47
Gilpin County 201.47172.73178.7381.4045.7951.778.422.4713.4285.460.0072.03106.16
 
Comparisons to National Norms % to Total >= 150% % to Total < 50% 

Jefferson County 102.69220.75133.26145.6845.06111.2952.3329.2164.6748.2267.8769.29100.04
Colorado 78.58169.33109.63124.1243.2479.6777.3843.4956.40106.9667.2982.1198.62
National 100.00100.00100.00100.00100.00100.00100.00100.00100.00100.00100.00100.00100.00
Denver County 86.75127.2896.37133.4044.69105.0358.0644.9768.81148.98107.31101.8775.80
Arapahoe County 69.98150.52100.98134.3478.08107.59205.6393.2192.66207.88133.10100.0187.20
Adams County 48.7094.8962.4061.0637.8272.0353.6939.64102.37188.1540.0984.8377.53
Douglas County 96.97244.82135.26175.7160.5275.85112.32135.1668.17112.7080.4169.21104.05
Boulder County 109.62209.09130.71181.09120.46138.3896.1162.7144.23129.9995.8867.31110.61
Broomfield County 129.90201.87124.85164.18123.71108.8677.41122.28120.74189.41112.2875.4685.16
Teller County 86.71281.72189.07136.368.5711.1619.663.244.1734.1116.7355.35147.58
Park County 94.25232.70143.00178.354.404.5929.350.366.3167.6114.2650.45128.88
Clear Creek County 54.45276.42208.66215.7616.5543.1065.384.727.710.0031.8248.96118.81
Gilpin County 158.31292.48195.95101.0419.8041.256.521.087.5791.410.0059.14104.69


Sources: STI: PopStats