Utikoomak Lake 155A

{{Infobox settlement

| name = Utikoomak Lake 155A

| official_name = Utikoomak Lake Indian Reserve No. 155A

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| settlement_type = Indian reserve

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| image_map = CAN AB 233 UTIKOOMAK LAKE INDIAN RESERVE -155A.svg

| map_alt = A map of the province of Alberta showing 80 counties and 145 small Indian reserves. One is highlighted with a red circle.

| map_caption = Location in Alberta

| subdivision_type = First Nation

| subdivision_name = Whitefish Lake

| subdivision_type1 = Treaty

| subdivision_name1 = 8

| subdivision_type2 = Country

| subdivision_name2 = Canada

| subdivision_type3 = Province

| subdivision_name3 = Alberta

| subdivision_type4 = Municipal district

| subdivision_name4 = Northern Sunrise

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| seat_type = Community

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| unit_pref = Metric

| area_footnotes = {{Cite web|title=Reserve/Settlement/Village Detail|access-date=August 12, 2019|website=Crown–Indigenous Relations and Northern Affairs Canada|publisher=Government of Canada|url=https://fnp-ppn.aadnc-aandc.gc.ca/FNP/Main/Search/RVDetail.aspx?RESERVE_NUMBER=06697&lang=eng}}

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| area_total_ha = 1041

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| population_footnotes = {{cite web | title=Census Profile, 2016 Census | url=https://www12.statcan.gc.ca/census-recensement/2016/dp-pd/prof/index.cfm?Lang=E | publisher=Statistics Canada | date=February 8, 2017 | access-date=2019-08-10}}

| population_as_of = 2016

| population_total = 127

| population_density_km2 = auto

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Utikoomak Lake 155A is an Indian reserve of the Whitefish Lake First Nation in Alberta, located within Northern Sunrise County.{{cite map|author=Government of Alberta|title=Municipal Boundaries|date=May 25, 2019|url=https://www.altalis.com/map;id=113|publisher=AltaLIS}} In the 2016 Canadian Census, it recorded a population of 127 living in 29 of its 34 total private dwellings.