Ancestry for Alamosa County, CO - ERSys®
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Alamosa 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:

16.86

Most common ancestry not including "Unknown" is:

Mexican

 
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)

Alamosa County16,679312224151165,560200661,9831743728
Colorado (in 000's)6,0161603396599153501591415831
National (in 000's)343,25113,8902,21362611,32738,8796,1814,6443,68725,8937,8527,174
Rio Grande County11,2172211184362,8562671,6333774
Conejos County7,67489573552,011153491,607842
Saguache County6,579112863121,4512808233200
Huerfano County6,715121720101,067011,0491098
Costilla County3,72352290201,2643376946410
 
Per Cent to Total PopulationDiversity
Index
 

Alamosa County16.861.871.340.090.7033.341.200.4011.891.040.220.17
Colorado9.732.650.550.151.0816.470.870.832.652.340.970.52
National7.834.050.640.183.3011.331.801.351.077.542.292.09
Rio Grande County14.171.971.050.040.3225.460.020.6014.560.330.060.04
Conejos County15.941.160.740.040.7226.211.990.6420.940.100.050.03
Saguache County11.441.701.310.050.1822.060.430.0012.510.490.000.00
Huerfano County12.701.801.070.000.1515.890.000.0115.620.150.130.12
Costilla County19.741.400.780.000.5433.950.080.0820.661.240.110.27
 
Comparisons to State Norms % to Total >= 150% % to Total < 50% 

Alamosa County 70.53243.8560.5464.11202.38137.1047.86449.3844.5222.9632.26
Colorado 100.00100.00100.00100.00100.00100.00100.00100.00100.00100.00100.00
National 152.57117.07122.83304.2168.76205.89163.6340.60321.91236.79401.61
Rio Grande County 74.28191.0124.0029.59154.582.0472.24550.2614.086.466.85
Conejos County 43.73134.8626.3166.07159.09227.9577.22791.504.455.405.01
Saguache County 64.18237.3530.6916.81133.9048.660.00472.8220.760.000.00
Huerfano County 67.94194.680.0013.7396.470.001.80590.466.3513.8722.89
Costilla County 52.66141.430.0049.52206.129.219.75780.7152.7311.1251.61
 
Comparisons to National Norms % to Total >= 150% % to Total < 50% 

Alamosa County 46.23208.2949.2821.08294.3166.5929.251,106.9213.839.708.03
Colorado 65.5485.4281.4132.87145.4348.5761.11246.3231.0642.2324.90
National 100.00100.00100.00100.00100.00100.00100.00100.00100.00100.00100.00
Rio Grande County 48.69163.1519.549.73224.790.9944.151,355.424.372.731.71
Conejos County 28.66115.2021.4221.72231.36110.7147.191,949.661.382.281.25
Saguache County 42.07202.7324.995.53194.7223.630.001,164.676.450.000.00
Huerfano County 44.53166.290.004.51140.290.001.101,454.431.975.865.70
Costilla County 34.52120.810.0016.28299.754.475.961,923.0816.384.7012.85
 
Ancestry Report Part II
DescriptionTotal Population Canadian British Dutch French German Italian Polish Scandi­navian Scotish/ Irish Spanish Other European

Alamosa County16,6798519916975114955226659695253
Colorado (in 000's)6,0162040642685791447017941985217
National (in 000's)343,2511,35018,0691,8283,64224,7089,0274,6675,96920,6251,1409,563
Rio Grande County11,217652651438738138190453511179
Conejos County7,6743299212725560614716160381
Saguache County6,5792534236935926996178572193213
Huerfano County6,7151433453585091982580265305157
Costilla County3,7234943201341353412217152
 
Per Cent to Total PopulationDiversity
Index
 

Alamosa County16.860.053.110.550.414.500.890.331.353.954.171.52
Colorado9.730.336.750.701.139.622.401.162.986.971.413.61
National7.830.395.260.531.067.202.631.361.746.010.332.79
Rio Grande County14.170.054.690.450.387.780.720.341.694.044.561.60
Conejos County15.940.043.900.270.353.320.780.081.922.107.861.06
Saguache County11.440.385.200.551.419.001.051.462.718.692.933.24
Huerfano County12.700.214.970.790.867.582.950.371.193.954.542.34
Costilla County19.740.112.520.080.543.600.350.130.913.284.591.40
 
Comparisons to State Norms % to Total >= 150% % to Total < 50% 

Alamosa County 14.5746.1377.7536.5546.8137.2828.4845.5356.70296.5442.01
Colorado 100.00100.00100.00100.00100.00100.00100.00100.00100.00100.00100.00
National 119.5078.0475.8993.7474.83109.76117.4258.4386.2323.6477.16
Rio Grande County 16.2569.5264.7933.8780.9130.1429.2656.9257.96324.2044.20
Conejos County 11.8857.7639.0031.0934.5532.636.7564.3730.11559.1929.23
Saguache County 115.4477.0677.98124.9093.5543.77126.0290.92124.77208.7789.67
Huerfano County 63.3473.74112.4776.3278.80123.0632.1540.0456.63323.2364.75
Costilla County 32.6437.4311.4847.4637.4214.5711.6030.6947.03326.8638.68
 
Comparisons to National Norms % to Total >= 150% % to Total < 50% 

Alamosa County 12.1959.11102.4538.9962.5533.9724.2577.9365.761,254.3854.44
Colorado 83.68128.14131.77106.68133.6391.1185.17171.14115.97423.01129.59
National 100.00100.00100.00100.00100.00100.00100.00100.00100.00100.00100.00
Rio Grande County 13.6089.0885.3836.13108.1227.4624.9297.4167.211,371.3957.28
Conejos County 9.9474.0251.3833.1646.1629.735.75110.1634.922,365.4437.88
Saguache County 96.6198.75102.75133.24125.0139.88107.32155.60144.70883.11116.20
Huerfano County 53.0094.49148.2181.41105.30112.1227.3868.5165.681,367.3283.92
Costilla County 27.3147.9615.1350.6350.0013.289.8852.5254.541,382.6750.13
 
Ancestry Report Part III
DescriptionTotal Population Chinese Filipino Japanese Korean Vietnamese South Central Asian South East Asian Other Asian Middle Eastern Other Ancestry Unknown

Alamosa County16,6794017174140157192,6391,717
Colorado (in 000's)6,016362112232744191723872945
National (in 000's)343,2514,4613,0107931,5411,9135,4521,6431,2291,93147,32251,000
Rio Grande County11,217101680010191,8581,378
Conejos County7,674010017005171,339594
Saguache County6,5790580000317807747
Huerfano County6,71500000170689251,414
Costilla County3,72302340002120663158
 
Per Cent to Total PopulationDiversity
Index
 

Alamosa County16.860.240.100.100.020.080.000.090.040.1115.8210.29
Colorado9.730.590.340.200.380.450.730.310.290.3814.5015.70
National7.831.300.880.230.450.561.590.480.360.5613.7914.86
Rio Grande County14.170.010.000.140.070.000.000.010.000.1716.5612.28
Conejos County15.940.000.010.000.000.220.000.000.070.2217.457.74
Saguache County11.440.000.880.000.000.000.000.050.020.1112.2711.35
Huerfano County12.700.000.000.000.000.000.250.000.090.1213.7821.06
Costilla County19.740.000.050.910.000.000.000.050.320.0017.814.24
 
Comparisons to State Norms % to Total >= 150% % to Total < 50% 

Alamosa County 40.5229.8249.996.3518.720.0028.8814.5029.84109.1365.56
Colorado 100.00100.00100.00100.00100.00100.00100.00100.00100.00100.00100.00
National 219.60256.63113.28118.98124.27218.57153.69123.71147.3295.0994.62
Rio Grande County 1.510.0069.9518.900.000.002.860.0044.37114.2578.24
Conejos County 0.003.810.000.0049.400.000.0022.5058.02120.3549.29
Saguache County 0.00257.970.000.000.000.0014.645.2527.8784.6072.31
Huerfano County 0.000.000.000.000.0034.840.0030.8631.2095.01134.10
Costilla County 0.0015.72447.880.000.000.0017.25111.330.00122.8327.03
 
Comparisons to National Norms % to Total >= 150% % to Total < 50% 

Alamosa County 18.4511.6244.135.3415.060.0018.7911.7220.25114.7769.29
Colorado 45.5438.9788.2884.0580.4745.7565.0780.8367.88105.16105.68
National 100.00100.00100.00100.00100.00100.00100.00100.00100.00100.00100.00
Rio Grande County 0.690.0061.7515.880.000.001.860.0030.12120.1582.68
Conejos County 0.001.490.000.0039.750.000.0018.1939.39126.5652.10
Saguache County 0.00100.520.000.000.000.009.534.2418.9288.9776.42
Huerfano County 0.000.000.000.000.0015.940.0024.9521.1899.92141.72
Costilla County 0.006.13395.370.000.000.0011.2289.990.00129.1728.56


Sources: STI: PopStats, Circa April 2025