Ancestry for Montgomery County, IL - ERSys®
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Montgomery 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:

16.25

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)

Montgomery County27,5722,875546104369507687844914
Illinois (in 000's)12,7843341632601,81196109661,099348291
National (in 000's)343,25113,8902,21362611,32738,8796,1814,6443,68725,8937,8527,174
Madison County262,96112,998495839798,01287956349115,7633,9583,431
Sangamon County194,4078,626318491,1442,67237653260316,3594,3263,416
Macoupin County43,9163,244870593336063532929357
Christian County33,2972,99946116374782395233919586
Shelby County20,5822,410301261490045151216
Fayette County21,0722,4709333758202449561179171
Bond County16,7001,1274572547011510191210095
 
Per Cent to Total PopulationDiversity
Index
 

Montgomery County16.2510.430.200.020.381.340.180.030.252.840.180.05
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
Madison County12.964.940.190.030.373.050.330.210.195.991.511.30
Sangamon County12.004.440.160.030.591.370.190.270.318.412.231.76
Macoupin County16.637.390.200.000.130.760.140.140.120.660.210.13
Christian County17.499.010.140.000.492.240.250.120.161.020.590.26
Shelby County21.5411.710.150.000.130.720.000.000.220.070.060.08
Fayette County16.8011.720.440.010.182.760.000.110.232.660.850.81
Bond County16.696.750.270.040.152.810.010.090.605.460.600.57
 
Comparisons to State Norms % to Total >= 150% % to Total < 50% 

Montgomery County 398.76157.1494.1118.559.4424.152.9847.8133.076.532.23
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
Madison County 189.03151.03136.5018.3121.5044.5225.1436.2069.7255.3257.25
Sangamon County 169.69131.24109.0028.949.7025.7632.1460.1397.8781.7977.10
Macoupin County 282.49158.950.006.615.3518.2016.8523.397.737.785.70
Christian County 344.44110.8412.9924.0715.8332.8013.7630.2711.8421.5311.33
Shelby County 447.79116.9521.016.215.110.000.0042.380.852.143.41
Fayette County 448.27354.1161.578.6319.490.0013.3845.0830.9631.2235.61
Bond County 258.08216.20181.277.3619.860.8010.55117.2463.5122.0124.96
 
Comparisons to National Norms % to Total >= 150% % to Total < 50% 

Montgomery County 257.6730.3711.9211.4311.8210.071.8822.9637.697.772.43
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
Madison County 122.1529.1917.3011.2826.9018.5615.8217.3879.4665.8062.43
Sangamon County 109.6525.3713.8117.8312.1310.7420.2328.88111.5597.2884.07
Macoupin County 182.5430.720.004.076.697.5910.6011.248.819.266.21
Christian County 222.5721.431.6514.8319.8113.688.6614.5413.5025.6012.36
Shelby County 289.3622.612.663.836.390.000.0020.360.972.553.72
Fayette County 289.6668.457.805.3224.380.008.4221.6535.2937.1338.83
Bond County 166.7741.7922.974.5424.850.336.6456.3172.3926.1827.22
 
Ancestry Report Part II
DescriptionTotal Population Canadian British Dutch French German Italian Polish Scandi­navian Scotish/ Irish Spanish Other European

Montgomery County27,572302,0002113005,7379902473082,4450676
Illinois (in 000's)12,78420481691061,20736442323378922459
National (in 000's)343,2511,35018,0691,8283,64224,7089,0274,6675,96920,6251,1409,563
Madison County262,96150919,3401,5543,77747,1817,2503,8032,68822,0966308,393
Sangamon County194,40728815,6181,3242,13626,2635,7202,1522,66017,4531825,518
Macoupin County43,916384,22038155510,3892,1074173194,67361,398
Christian County33,297183,1212825514,5291,3052813982,60236791
Shelby County20,582311,7681464563,7591752171771,5820344
Fayette County21,072461,6401012903,9712791311741,36082211
Bond County16,70001,1811063173,2692601141131,29114264
 
Per Cent to Total PopulationDiversity
Index
 

Montgomery County16.250.117.250.771.0920.813.590.901.128.870.002.45
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
Madison County12.960.197.350.591.4417.942.761.451.028.400.243.19
Sangamon County12.000.158.030.681.1013.512.941.111.378.980.092.84
Macoupin County16.630.099.610.871.2623.664.800.950.7310.640.013.18
Christian County17.490.059.370.851.6513.603.920.841.207.810.112.38
Shelby County21.540.158.590.712.2218.260.851.050.867.690.001.67
Fayette County16.800.227.780.481.3818.841.320.620.836.450.391.00
Bond County16.690.007.070.631.9019.571.560.680.687.730.081.58
 
Comparisons to State Norms % to Total >= 150% % to Total < 50% 

Montgomery County 68.88192.64142.26131.76220.34126.1027.0961.30143.720.0068.25
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
Madison County 122.53195.32109.86173.94190.0096.8243.7356.09136.18136.8688.85
Sangamon County 93.78213.35126.60133.05143.05103.3333.4775.08145.5053.4879.01
Macoupin County 54.77255.20161.28153.04250.51168.4928.7139.86172.457.8088.61
Christian County 34.22248.93157.44200.39144.03137.6425.5265.59126.6561.7666.13
Shelby County 95.34228.13131.87268.29193.4029.8631.8847.19124.570.0046.53
Fayette County 138.19206.6989.10166.66199.5646.5018.8045.31104.60222.3027.87
Bond County 0.00187.81117.99229.87207.2954.6820.6437.13125.2947.8944.01
 
Comparisons to National Norms % to Total >= 150% % to Total < 50% 

Montgomery County 27.66137.80143.70102.55289.06136.5365.8964.24147.580.0088.00
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
Madison County 49.21139.72110.97135.38249.26104.83106.3758.79139.8472.12114.56
Sangamon County 37.66152.61127.88103.56187.67111.8881.4278.69149.4128.18101.87
Macoupin County 22.00182.55162.91119.12328.64182.4369.8441.77177.094.11114.26
Christian County 13.74178.06159.03155.97188.96149.0262.0768.74130.0532.5585.26
Shelby County 38.29163.18133.20208.82253.7232.3377.5549.46127.920.0059.99
Fayette County 55.50147.8590.00129.71261.8050.3445.7347.49107.41117.1535.94
Bond County 0.00134.34119.19178.91271.9459.2050.2138.91128.6625.2456.74
 
Ancestry Report Part III
DescriptionTotal Population Chinese Filipino Japanese Korean Vietnamese South Central Asian South East Asian Other Asian Middle Eastern Other Ancestry Unknown

Montgomery County27,57211410105113121,9948,116
Illinois (in 000's)12,7841371301860272914933751,5811,775
National (in 000's)343,2514,4613,0107931,5411,9135,4521,6431,2291,93147,32251,000
Madison County262,96158246813030624156113026251028,80666,092
Sangamon County194,4078966731251941731,82016120053424,88347,013
Macoupin County43,91639210572323702,76412,147
Christian County33,297132431418230482,72311,696
Shelby County20,582046015014401,1627,991
Fayette County21,072080002172231,9936,573
Bond County16,7003480002501361,4925,286
 
Per Cent to Total PopulationDiversity
Index
 

Montgomery County16.250.040.150.000.000.000.180.000.110.017.2329.44
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
Madison County12.960.220.180.050.120.090.210.050.100.1910.9525.13
Sangamon County12.000.460.350.060.100.090.940.080.100.2712.8024.18
Macoupin County16.630.090.050.000.130.000.010.000.080.006.2927.66
Christian County17.490.040.010.010.090.120.250.090.010.028.1835.13
Shelby County21.540.000.220.000.070.000.000.020.020.005.6538.83
Fayette County16.800.000.040.000.000.000.010.080.100.019.4631.19
Bond County16.690.020.290.000.000.000.150.000.080.048.9331.65
 
Comparisons to State Norms % to Total >= 150% % to Total < 50% 

Montgomery County 3.7414.660.000.770.008.130.9442.971.2358.48211.99
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
Madison County 20.7217.5434.4424.7442.729.3812.8338.0832.9788.59181.01
Sangamon County 43.1534.1244.7921.2241.4841.1521.5039.3246.69103.51174.16
Macoupin County 8.314.710.0027.602.120.301.1832.200.0050.90199.20
Christian County 3.660.598.3719.8057.4010.8323.394.594.0866.13252.97
Shelby County 0.0022.030.0015.500.000.215.047.430.0045.66279.61
Fayette County 0.003.740.000.000.000.4220.9439.902.4276.49224.64
Bond County 1.6828.330.000.000.006.580.0029.756.1172.25227.95
 
Comparisons to National Norms % to Total >= 150% % to Total < 50% 

Montgomery County 3.0716.960.000.810.0011.650.7631.391.2952.46198.11
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
Madison County 17.0320.2921.4025.9116.4513.4310.3327.8234.4879.46169.16
Sangamon County 35.4639.4727.8422.2215.9758.9417.3028.7248.8492.84162.76
Macoupin County 6.835.450.0028.900.820.430.9523.520.0045.65186.16
Christian County 3.000.685.2020.7322.1015.5118.823.354.2759.32236.41
Shelby County 0.0025.480.0016.230.000.314.065.430.0040.95261.31
Fayette County 0.004.330.000.000.000.6016.8629.152.5368.60209.94
Bond County 1.3832.770.000.000.009.430.0021.736.3964.80213.04


Sources: STI: PopStats, Circa April 2025