Ancestry for Stephenson County, IL - ERSys®
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Stephenson 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:

14.49

Most common ancestry not including "Unknown" is:

German

 
Ancestry Report Part I
DescriptionTotal Population American Native American Hawaiian Caribbean (Latino) Mexican Central American South American Other Hispanic African American Sub- Saharan Caribbean (Black)

Stephenson County43,2831,66685114611,596079582,688659610
Illinois (in 000's)12,7843341632601,81196109661,099348291
National (in 000's)343,25113,8902,21362611,32738,8796,1814,6443,68725,8937,8527,174
Winnebago County284,7187,081540603,63634,0061,7101,0961,11125,0336,5405,259
Ogle County51,1972,0936403905,034103302094515275
Green County37,3071,381433301,2891098641713428
Jo Daviess County21,5871,4853241562967613913544
Lafayette County17,400626165597302705576050
Carroll County15,4661,2304552946814282185761520
 
Per Cent to Total PopulationDiversity
Index
 

Stephenson County14.493.850.200.031.073.690.000.180.136.211.521.41
Illinois8.322.610.120.022.0314.170.750.850.528.602.722.28
National7.834.050.640.183.3011.331.801.351.077.542.292.09
Winnebago County8.972.490.190.021.2811.940.600.380.398.792.301.85
Ogle County12.944.090.130.000.769.830.200.060.410.880.100.15
Green County18.903.700.120.010.083.460.030.260.170.460.090.08
Jo Daviess County16.756.880.150.020.072.910.030.350.640.630.020.02
Lafayette County16.023.600.090.030.344.201.550.030.330.340.030.00
Carroll County15.427.950.290.030.193.030.090.181.413.720.100.13
 
Comparisons to State Norms % to Total >= 150% % to Total < 50% 

Stephenson County 147.20157.57109.9152.3726.020.0021.4425.9872.2355.9661.84
Illinois 100.00100.00100.00100.00100.00100.00100.00100.00100.00100.00100.00
National 154.75517.34789.18162.2779.93239.84158.89208.2187.7384.0891.71
Winnebago County 95.11152.1791.1462.8084.2979.9945.2175.64102.2684.4381.05
Ogle County 156.34100.300.0037.4669.3926.796.8879.1310.253.736.43
Green County 141.5692.4834.783.9524.383.5730.8533.255.333.353.29
Jo Daviess County 263.08118.9480.133.4220.563.7041.35124.827.270.680.81
Lafayette County 137.5973.78124.2716.6729.61206.673.3763.504.011.060.00
Carroll County 304.14233.45139.819.2221.3512.0621.26273.2443.313.565.67
 
Comparisons to National Norms % to Total >= 150% % to Total < 50% 

Stephenson County 95.1230.4613.9332.2832.550.0013.4912.4882.3366.5667.43
Illinois 64.6219.3312.6761.63125.1041.6962.9448.03113.98118.94109.04
National 100.00100.00100.00100.00100.00100.00100.00100.00100.00100.00100.00
Winnebago County 61.4629.4111.5538.70105.4533.3528.4536.33116.55100.4188.37
Ogle County 101.0219.390.0023.0886.8111.174.3338.0111.684.447.01
Green County 91.4817.884.412.4430.501.4919.4215.976.083.983.59
Jo Daviess County 170.0022.9910.152.1125.731.5426.0259.958.290.810.89
Lafayette County 88.9114.2615.7510.2837.0486.172.1230.504.571.260.00
Carroll County 196.5345.1217.725.6826.725.0313.38131.2349.374.246.19
 
Ancestry Report Part II
DescriptionTotal Population Canadian British Dutch French German Italian Polish Scandi­navian Scotish/ Irish Spanish Other European

Stephenson County43,283432,33163640611,9347736351,4022,84646746
Illinois (in 000's)12,78420481691061,20736442323378922459
National (in 000's)343,2511,35018,0691,8283,64224,7089,0274,6675,96920,6251,1409,563
Winnebago County284,71844413,3181,6552,27333,31210,3525,02717,97618,8314876,067
Ogle County51,197513,42258564410,6671,2911,0402,8314,190167972
Green County37,307962,11724243413,3633926544,1152,73158842
Jo Daviess County21,587191,4742872927,0134014878152,54315592
Lafayette County17,400301,4151311744,3011061871,7001,64320243
Carroll County15,466318923881433,8472112455341,2121231
 
Per Cent to Total PopulationDiversity
Index
 

Stephenson County14.490.105.391.470.9427.571.791.473.246.580.111.72
Illinois8.320.163.770.540.839.442.853.311.826.170.183.59
National7.830.395.260.531.067.202.631.361.746.010.332.79
Winnebago County8.970.164.680.580.8011.703.641.776.316.610.172.13
Ogle County12.940.106.681.141.2620.842.522.035.538.180.331.90
Green County18.900.265.670.651.1635.821.051.7511.037.320.162.26
Jo Daviess County16.750.096.831.331.3532.491.862.263.7811.780.072.74
Lafayette County16.020.178.130.751.0024.720.611.079.779.440.111.40
Carroll County15.420.205.772.510.9224.871.361.583.457.840.011.49
 
Comparisons to State Norms % to Total >= 150% % to Total < 50% 

Stephenson County 62.89143.02273.16113.59291.9762.7244.36177.75106.5760.7147.98
Illinois 100.00100.00100.00100.00100.00100.00100.00100.00100.00100.00100.00
National 248.99139.8099.00128.4876.2392.3641.1195.4297.38189.7777.56
Winnebago County 98.71124.23108.0696.68123.90127.6953.39346.46107.1997.7159.32
Ogle County 63.06177.51212.41152.33220.6388.5661.43303.44132.64186.3452.85
Green County 162.89150.70120.59140.87379.3036.9053.01605.28118.6488.8162.83
Jo Daviess County 55.72181.34247.15163.80344.0265.2468.22207.18190.9239.6976.34
Lafayette County 109.14215.97139.96121.10261.7521.3932.50536.14153.0365.6638.88
Carroll County 126.88153.17466.36111.97263.4047.9147.90189.47127.013.6941.58
 
Comparisons to National Norms % to Total >= 150% % to Total < 50% 

Stephenson County 25.26102.31275.9288.41383.0467.91107.91186.28109.4331.9961.86
Illinois 40.1671.53101.0177.83131.19108.27243.24104.80102.6952.70128.94
National 100.00100.00100.00100.00100.00100.00100.00100.00100.00100.00100.00
Winnebago County 39.6588.86109.1575.25162.54138.25129.86363.09110.0751.4976.48
Ogle County 25.33126.97214.56118.56289.4595.88149.41318.00136.2098.1968.14
Green County 65.42107.80121.80109.65497.6139.95128.94634.33121.8346.8081.01
Jo Daviess County 22.38129.71249.65127.49451.3270.63165.93217.12196.0520.9298.43
Lafayette County 43.83154.49141.3794.25343.3923.1679.05561.87157.1534.6050.12
Carroll County 50.96109.56471.0887.15345.5551.87116.51198.56130.421.9553.61
 
Ancestry Report Part III
DescriptionTotal Population Chinese Filipino Japanese Korean Vietnamese South Central Asian South East Asian Other Asian Middle Eastern Other Ancestry Unknown

Stephenson County43,283268217262185558484,3058,899
Illinois (in 000's)12,7841371301860272914933751,5811,775
National (in 000's)343,2514,4613,0107931,5411,9135,4521,6431,2291,93147,32251,000
Winnebago County284,7181,0701,429593495961,6142,0497901,10438,12641,718
Ogle County51,197632820700351714555,37411,160
Green County37,307712529299125762,1956,751
Jo Daviess County21,58703410411906301,1653,824
Lafayette County17,400313520205771,0474,490
Carroll County15,4664030146415299614,020
 
Per Cent to Total PopulationDiversity
Index
 

Stephenson County14.490.060.190.040.060.050.200.010.130.119.9520.56
Illinois8.321.071.010.140.470.212.270.390.260.5912.3713.89
National7.831.300.880.230.450.561.590.480.360.5613.7914.86
Winnebago County8.970.380.500.020.120.210.570.720.280.3913.3914.65
Ogle County12.940.120.050.040.140.000.070.030.030.1110.5021.80
Green County18.900.020.030.010.080.080.020.030.150.025.8818.10
Jo Daviess County16.750.000.160.000.000.190.090.000.030.145.4017.71
Lafayette County16.020.180.020.030.010.000.110.030.040.046.0225.80
Carroll County15.420.030.000.020.000.010.300.030.100.196.2125.99
 
Comparisons to State Norms % to Total >= 150% % to Total < 50% 

Stephenson County 5.6218.6727.3612.7722.628.633.0051.2118.8580.43148.07
Illinois 100.00100.00100.00100.00100.00100.00100.00100.00100.00100.00100.00
National 121.6886.44160.9195.48259.7869.82124.24136.8995.61111.49107.00
Winnebago County 35.1949.4714.4426.0697.5824.92186.81106.0465.91108.29105.52
Ogle County 11.525.3927.2129.070.003.018.6210.4518.2684.88156.98
Green County 1.763.179.3416.5336.241.068.3558.392.7347.58130.32
Jo Daviess County 0.0015.523.230.0088.543.870.0010.6223.6243.64127.57
Lafayette County 16.681.7020.022.440.005.057.4615.386.8448.66185.84
Carroll County 2.420.0013.510.003.0113.076.7137.0731.8750.25187.19
 
Comparisons to National Norms % to Total >= 150% % to Total < 50% 

Stephenson County 4.6221.6017.0013.388.7112.362.4137.4119.7272.14138.38
Illinois 82.18115.6862.15104.7438.49143.2380.4973.05104.5989.7093.46
National 100.00100.00100.00100.00100.00100.00100.00100.00100.00100.00100.00
Winnebago County 28.9257.238.9727.3037.5635.69150.3677.4768.9497.1398.62
Ogle County 9.476.2416.9130.450.004.306.947.6319.1076.14146.71
Green County 1.443.675.8017.3113.951.526.7242.662.8642.68121.79
Jo Daviess County 0.0017.962.010.0034.085.540.007.7624.7139.15119.22
Lafayette County 13.711.9712.442.560.007.246.0011.237.1543.65173.68
Carroll County 1.990.008.400.001.1618.735.4027.0833.3445.07174.94


Sources: STI: PopStats, Circa April 2025