Parent Layer: Population Density

Name: Block Groups

Display Field: NAMELSAD

Type: Feature Layer

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Description: <DIV STYLE="text-align:Left;"><DIV><DIV><P><SPAN>The information included is U.S. Census Bureau data from the 2020 decennial Census, and summarized by Census blockgroups. Tracts are the largest Census defined geographic boundary, which are made up of blockgroups, and which in turn are made up of blocks (the smallest geographic boundary). Data included for each blockgroup is a summary of information released as part of the redistricting data, and is somewhat limited. Data included in this release are basic counts, race, and general age group (youths or adults). This information does not include relationships, sex, or age groups, and which may be added in the future.</SPAN></P><P><SPAN>This data was compiled directly from U.S. Census Bureau information using R Statistical software, and then projected into the same coordinate system as other Ada County data (NAD_1983_Transverse_Mercator.</SPAN></P><P><SPAN>The following 2020 Decennial Census redistricting key ID's are used, along with their named field in this dataset, and a description.</SPAN></P><UL><LI><P><SPAN>_KEY_ID_ | _Named_, Description</SPAN></P></LI></UL><UL><LI><P><SPAN>H1_001N | T_H_All, Housing All</SPAN></P></LI><LI><P><SPAN>H1_002N | T_H_OCC, Housing Occupied</SPAN></P></LI><LI><P><SPAN>H1_003N | T_H_UOC, Housing Not Occupied</SPAN></P></LI><LI><P><SPAN>P1_001N | T_P_ALL, Total Population</SPAN></P></LI><LI><P><SPAN>P3_001N | T_P_18p, Total Population, 18+</SPAN></P></LI><LI><P><SPAN>P1_002N | T_1Race, Population of one race</SPAN></P></LI><LI><P><SPAN>P1_009N | T_2Race, Population of two or more races</SPAN></P></LI><LI><P><SPAN>P1_003N | T_R_Wht, White alone</SPAN></P></LI><LI><P><SPAN>P1_004N | T_R_Blk, Black or African American alone</SPAN></P></LI><LI><P><SPAN>P1_005N | T_R_NTV, American Indian and Alaska Native alone</SPAN></P></LI><LI><P><SPAN>P1_006N | T_R_ASN, Asian alone</SPAN></P></LI><LI><P><SPAN>P1_007N | T_R_ISL, Native Hawaiian and Other Pacific Islander alone</SPAN></P></LI><LI><P><SPAN>P1_008N | T_R_OTR, Some Other Race alone</SPAN></P></LI><LI><P><SPAN>P2_002N | T_R_LAT, Hispanic or Latino</SPAN></P></LI><LI><P><SPAN>P2_003N | T_R_NOT, Not Hispanic or Latino</SPAN></P></LI><LI><P><SPAN>P5_002N | T_I_ALL, Total Institutionalized population</SPAN></P></LI><LI><P><SPAN>P5_007N | T_I_NON, Total Noninstitutionalized population</SPAN></P></LI><LI><P><SPAN>P5_003N | T_I_COR, Correctional facilities for adults</SPAN></P></LI><LI><P><SPAN>P5_004N | T_I_JUV, Juvenile facilities</SPAN></P></LI><LI><P><SPAN>P5_005N | T_I_NUR, Nursing facilities/Skilled-nursing facilities</SPAN></P></LI><LI><P><SPAN>P5_006N | T_I_OTI, Other institutional facilities</SPAN></P></LI><LI><P><SPAN>P5_008N | T_I_EDU, College/University student housing</SPAN></P></LI><LI><P><SPAN>P5_009N | T_I_MIT, Military quarters</SPAN></P></LI><LI><P><SPAN>P5_010N | T_I_OTN, Other noninstitutional facilities</SPAN></P></LI></UL><P><SPAN>The following fields were calculated using the fields above. Text after hashtags are descriptions.</SPAN></P><UL><LI><P><SPAN>TV_tracts$t_adult = (TV_tracts$T_P_18p) # create new population total adults</SPAN></P></LI><LI><P><SPAN>TV_tracts$p_adult = (TV_tracts$T_P_18p / TV_tracts$T_P_ALL) # calculate percent adults</SPAN></P></LI><LI><P><SPAN>TV_tracts$t_kids_ = (TV_tracts$T_P_ALL - TV_tracts$T_P_18p) # calculate total population youth</SPAN></P></LI><LI><P><SPAN>TV_tracts$p_kids_ = (TV_tracts$t_kids_ / TV_tracts$T_P_ALL) # calculate percent youth</SPAN></P></LI></UL><UL><LI><P><SPAN>TV_tracts$P_white = (TV_tracts$T_R_Wht / TV_tracts$T_P_ALL) # percent white</SPAN></P></LI><LI><P><SPAN>TV_tracts$P_nwhit = (TV_tracts$T_P_ALL - TV_tracts$T_R_Wht) / TV_tracts$T_P_ALL # percent not white</SPAN></P></LI><LI><P><SPAN>TV_tracts$P_latin = (TV_tracts$T_R_LAT / TV_tracts$T_P_ALL) # percent latino/hispanic</SPAN></P></LI><LI><P><SPAN>TV_tracts$P_nlati = (TV_tracts$T_R_NOT / TV_tracts$T_P_ALL) # percent not latino/hispanic</SPAN></P></LI><LI><P><SPAN>TV_tracts$P_black = (TV_tracts$T_R_Blk / TV_tracts$T_P_ALL) # percent african american</SPAN></P></LI><LI><P><SPAN>TV_tracts$P_natve = (TV_tracts$T_R_NTV / TV_tracts$T_P_ALL) # percent american indian / alaskan native</SPAN></P></LI><LI><P><SPAN>TV_tracts$P_asian = (TV_tracts$T_R_ASN / TV_tracts$T_P_ALL) # percent asian</SPAN></P></LI><LI><P><SPAN>TV_tracts$P_isle_ = (TV_tracts$T_R_ISL / TV_tracts$T_P_ALL) # percent islander</SPAN></P></LI><LI><P><SPAN>TV_tracts$P_other = (TV_tracts$T_R_OTR / TV_tracts$T_P_ALL) # percent other race</SPAN></P></LI><LI><P><SPAN>TV_tracts$P_multi = (TV_tracts$T_2Race / TV_tracts$T_P_ALL) # percent two or more race</SPAN></P></LI></UL><UL><LI><P><SPAN>convert_SQM = 4046.86 # Census area data is in square meters</SPAN></P></LI></UL><UL><LI><P><SPAN>TV_tracts$bk_AC_N = TV_tracts$ALAND / convert_SQM # Convert Census land area (net), square meters to acres</SPAN></P></LI><LI><P><SPAN>TV_tracts$bk_AC_G = ( (TV_tracts$ALAND + TV_tracts$AWATER) / convert_SQM) # Convert Census land + water area (gross), square meters to acres</SPAN></P></LI><LI><P><SPAN>TV_tracts$TP_AC_N = (TV_tracts$T_P_ALL / TV_tracts$bk_AC_N) # Net density in that water area is not included</SPAN></P></LI><LI><P><SPAN>TV_tracts$TP_AC_G = (TV_tracts$T_P_ALL / TV_tracts$bk_AC_G) # Net density in that water area is not included</SPAN></P></LI></UL><P><SPAN>Contact Brian McClure, Comprehensive Associate Planner, for questions.</SPAN></P></DIV></DIV></DIV>

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Copyright Text: U.S. Census Bureau; that ESRI guy with a James Bond villain name, and of course, Christopher Walken.

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