| U.S. 2000 Census Results - Summary File 1 | ||||
| Census Variable Name | Location name | Westerville city | Percent | Description |
| P001001 | Total Population (100% Count), April 1, 2000 | 35,318 | 100.0% | All residents |
| HU100 | Total number of Housing Units (100% Count) | 13,143 | 100.0% | All housing units |
| P017001 | Average Household Size | 2.67 | ||
| P017A001 | Average Household Size (number of residents), White Householder | 2.65 | ||
| P017B001 | Average Household Size (number of residents), Black/African American Householder | 2.84 | ||
| P017C001 | Average Household Size (number of residents), American Indian/Alaskan Householder | 2.60 | ||
| P017D001 | Average Household Size (number of residents), Asian Householder | 3.10 | ||
| P017E001 | Average Household Size (number of residents), Hawaiian/Pacific Islander Householder | 4.00 | ||
| P017F001 | Average Household Size (number of residents), Other racial category Householder | 3.30 | ||
| P017G001 | Average Household Size (# of residents), Householder with 2 or more racial categories | 3.11 | ||
| P017H001 | Average Household Size (number of residents), Hispanic Householder, and race | 3.00 | ||
| P018001 | Households, total count | 12,663 | 100.0% | All households |
| P018002 | Number of ONE person Households | 2,651 | 20.9% | Percent of all households |
| P018003 | Number of ONE person Households - Male | 790 | 6.2% | Percent of all households |
| P018004 | Number of ONE person Households - Female | 1,861 | 14.7% | Percent of all households |
| P018005 | Households, total count of those with 2 or more residents | 10,012 | 79.1% | Percent of all households |
| P018006 | Households, total count of family households | 9,550 | 75.4% | Percent of all households |
| P018007 | Households, total count of Married-couple familes | 8,211 | 64.8% | Percent of all households |
| P018008 | Households, total count of married households with children under 18 years | 4,120 | 32.5% | Percent of all households |
| P018009 | Households, total count of married households with no children under 18 years | 4,091 | 32.3% | Percent of all households |
| P018010 | Households, total count of Other (not married couple) families | 1,339 | 10.6% | Percent of all households |
| P018011 | Households, total count of families with male householders, no wife present | 285 | 2.3% | Percent of all households |
| P018012 | Households, total count male householders, no wife present, with children under 18 | 158 | 1.2% | Percent of all households |
| P018013 | Households, total count male householders, no wife present, with no children under 18 | 127 | 1.0% | Percent of all households |
| P018014 | Households, total count of families with female householders, no husband present | 1,054 | 8.3% | Percent of all households |
| P018015 | Households, total count female householders, no husband present, with children under 18 | 695 | 5.5% | Percent of all households |
| P018016 | Households, total count female householders, no husband present, with no children under 18 | 359 | 2.8% | Percent of all households |
| P018017 | Households, total count of non-family households | 462 | 3.6% | Percent of all households |
| P018018 | Households, total count of non-family male headed households | 242 | 1.9% | Percent of all households |
| P018019 | Households, total count of non-family female headed households | 220 | 1.7% | Percent of all households |
| P019001 | Households, total count | 12,663 | 100.0% | All households |
| P019002 | Households, total count of those with children under 18 | 5,165 | 40.8% | Percent of all households |
| P019003 | Households, total count of family households, with children under 18 | 5,144 | 40.6% | Percent of all households |
| P019004 | Households, total count of married family households, with children under 18 | 4,209 | 33.2% | Percent of all households |
| P019005 | Households, total count of other (non-married) family households, with children under 18 | 935 | 7.4% | Percent of all households |
| P019006 | Households, count of male headed family households, with children under 18 | 177 | 1.4% | Percent of all households |
| P019007 | Households, count of female family households, with children under 18 | 758 | 6.0% | Percent of all households |
| P019008 | Households, total count of non-family households, with children under 18 | 21 | 0.2% | Percent of all households |
| P019009 | Households, count of male headed non-family households, with children under 18 | 14 | 0.1% | Percent of all households |
| P019010 | Households, count of female non-family households, with children under 18 | 7 | 0.1% | Percent of all households |
| P019011 | Households, total count of those with no children under 18 | 7,498 | 59.2% | Percent of all households |
| P019012 | Households, total count of family households, with no children under 18 | 4,406 | 34.8% | Percent of all households |
| P019013 | Households, total count of married family households, with no children under 18 | 4,002 | 31.6% | Percent of all households |
| P019014 | Households, total count of other (non-married) family households, with no children under 18 | 404 | 3.2% | Percent of all households |
| P019015 | Households, count of male headed family households, with no children under 18 | 108 | 0.9% | Percent of all households |
| P019016 | Households, count of female family households, with no children under 18 | 296 | 2.3% | Percent of all households |
| P019017 | Households, total count of non-family households, with no children under 18 | 3,092 | 24.4% | Percent of all households |
| P019018 | Households, count of male headed non-family households, with no children under 18 | 1,018 | 8.0% | Percent of all households |
| P019019 | Households, count of female non-family households, with no children under 18 | 2,074 | 16.4% | Percent of all households |
| P020017 | Households, total count of those with householder age 65 or greater | 2,128 | 16.8% | Percent of all households |
| P020018 | Households, total count of those with householder age 65 or greater - family households | 1,091 | 8.6% | Percent of all households |
| P020019 | Households, total count of those with householder age 65 or greater - married couple family | 976 | 7.7% | Percent of all households |
| P020020 | Households, count of householders age 65 or greater - married couple with children under 18 | 4 | 0.0% | Percent of all households |
| P020021 | Count of householders age 65 or greater - married couple family with no children under 18 | 972 | 7.7% | Percent of all households |
| P020022 | Households, count of those with householder age 65 or greater - other (non-married) family | 115 | 0.9% | Percent of all households |
| P020023 | Households, total count of male householders age 65+, no wife present | 17 | 0.1% | Percent of all households |
| P020024 | Households, total count of male householders age 65+, no wife, with children under 18 | 1 | 0.0% | Percent of all households |
| P020025 | Households, total count of male householders age 65+, no wife, with no children under 18 | 16 | 0.1% | Percent of all households |
| P020026 | Households, total count of female householders age 65+, no husband present | 98 | 0.8% | Percent of all households |
| P020027 | Households, total count of female householders age 65+, no husband, with children under 18 | 0 | 0.0% | Percent of all households |
| P020028 | Households, count of female householders age 65+, no husband, with no children under 18 | 98 | 0.8% | Percent of all households |
| P020029 | Households, total count of those with householder age 65 or greater, non-family household | 1,037 | 8.2% | Percent of all households |
| P020030 | Households, count of householders age 65 or greater, living alone | 1,013 | 8.0% | Percent of all households |
| P020031 | Households, count of householders age 65 or greater, non-family households, not living alone | 24 | 0.2% | Percent of all households |
| P021001 | Households, total count | 12,663 | 100.0% | All households |
| P021002 | Households, total count of family households | 9,550 | 75.4% | Percent of all households |
| P021003 | Households, total count of family households, householder 15 to 24 years old | 141 | 1.1% | Percent of all households |
| P021004 | Households, total count of family households, householder 25 to 34 years old | 1,254 | 9.9% | Percent of all households |
| P021005 | Households, total count of family households, householder 35 to 44 years old | 2,714 | 21.4% | Percent of all households |
| P021006 | Households, total count of family households, householder 45 to 54 years old | 2,986 | 23.6% | Percent of all households |
| P021007 | Households, total count of family households, householder 55 to 64 years old | 1,364 | 10.8% | Percent of all households |
| P021008 | Households, total count of family households, householder 65 to 74 years old | 737 | 5.8% | Percent of all households |
| P021009 | Households, total count of family households, householder 75 to 84 years old | 312 | 2.5% | Percent of all households |
| P021010 | Households, total count of family households, householder 85 years old & over | 42 | 0.3% | Percent of all households |
| P021011 | Households, total count of non-family households | 3,113 | 24.6% | Percent of all households |
| P021012 | Households, total count of non-family households, householder 15 to 24 years old | 170 | 1.3% | Percent of all households |
| P021013 | Households, total count of non-family households, householder 25 to 34 years old | 438 | 3.5% | Percent of all households |
| P021014 | Households, total count of non-family households, householder 35 to 44 years old | 483 | 3.8% | Percent of all households |
| P021015 | Households, total count of non-family households, householder 45 to 54 years old | 559 | 4.4% | Percent of all households |
| P021016 | Households, total count of non-family households, householder 55 to 64 years old | 426 | 3.4% | Percent of all households |
| P021017 | Households, total count of non-family households, householder 65 to 74 years old | 420 | 3.3% | Percent of all households |
| P021018 | Households, total count of non-family households, householder 75 to 84 years old | 420 | 3.3% | Percent of all households |
| P021019 | Households, total count of non-family households, householder 85 years old & over | 197 | 1.6% | Percent of all households |
| P022001 | Households, total count | 12,663 | 100.0% | All households |
| P022002 | Households, total count households with one or more people age 60 & over | 3,099 | 24.5% | Percent of all households |
| P022003 | Households, total count 1 person households with one person age 60 & over | 1,181 | 9.3% | Percent of all households |
| P022004 | Households, count households with 2+ residents, with 1+ people age 60 & over | 1,918 | 15.1% | Percent of all households |
| P022005 | Households, count of family households with one or more people age 60 & over | 1,871 | 14.8% | Percent of all households |
| P022006 | Households, count of non-family households with one or more people age 60 & over | 47 | 0.4% | Percent of all households |
| P022007 | Households, total count households with no people age 60 & over | 9,564 | 75.5% | Percent of all households |
| P022008 | Households, total count 1 person households with no people age 60 & over | 1,470 | 11.6% | Percent of all households |
| P022009 | Households, count households with 2+ residents, with no people age 60 & over | 8,094 | 63.9% | Percent of all households |
| P022010 | Households, count of family households with no people age 60 & over | 7,679 | 60.6% | Percent of all households |
| P022011 | Households, count of non-family households with no people age 60 & over | 415 | 3.3% | Percent of all households |
| P023001 | Households, total count | 12,663 | 100.0% | All households |
| P024002 | Households, total count households with one or more people age 75 & over | 1,136 | 9.0% | Percent of all households |
| P024003 | Households, total count 1 person households with one person age 75 & over | 606 | 4.8% | Percent of all households |
| P024004 | Households, count households with 2+ residents, with 1+ people age 75 & over | 530 | 4.2% | Percent of all households |
| P024005 | Households, count of family households with one or more people age 75 & over | 515 | 4.1% | Percent of all households |
| P024006 | Households, count of non-family households with one or more people age 75 & over | 15 | 0.1% | Percent of all households |
| P024007 | Households, total count households with no people age 75 & over | 11,527 | 91.0% | Percent of all households |
| P024008 | Households, total count 1 person households with no people age 75 & over | 2,045 | 16.1% | Percent of all households |
| P024009 | Households, count households with 2+ residents, with no people age 75 & over | 9,482 | 74.9% | Percent of all households |
| P024010 | Households, count of family households with no people age 75 & over | 9,035 | 71.3% | Percent of all households |
| P024011 | Households, count of non-family households with no people age 75 & over | 447 | 3.5% | Percent of all households |
| P025001 | Households, total count | 12,663 | 100.0% | All households |
| P025002 | Households, count of households with one or more nonrelative residents | 715 | 5.6% | Percent of all households |
| P025003 | Households, count of households with no nonrelative residents | 11,948 | 94.4% | Percent of all households |
| P026001 | Households, total count | 12,663 | 100.0% | All households |
| P026002 | Households, total count of family households | 9,550 | 75.4% | Percent of all households |
| P026003 | Households, total count of 2 person family households | 3,834 | 30.3% | Percent of all households |
| P026004 | Households, total count of 3 person family households | 2,204 | 17.4% | Percent of all households |
| P026005 | Households, total count of 3 person family households | 2,259 | 17.8% | Percent of all households |
| P026006 | Households, total count of 5 person family households | 941 | 7.4% | Percent of all households |
| P026007 | Households, total count of 6 person family households | 229 | 1.8% | Percent of all households |
| P026008 | Households, total count of 7 or more person family households | 83 | 0.7% | Percent of all households |
| P026009 | Households, total count of non-family households | 3,113 | 24.6% | Percent of all households |
| P026010 | Households, total count of 1 person non-family households | 2,651 | 20.9% | Percent of all households |
| P026011 | Households, total count of 2 person non-family households | 373 | 2.9% | Percent of all households |
| P026012 | Households, total count of 3 person non-family households | 53 | 0.4% | Percent of all households |
| P026013 | Households, total count of 3 person non-family households | 23 | 0.2% | Percent of all households |
| P026014 | Households, total count of 5 person non-family households | 11 | 0.1% | Percent of all households |
| P026015 | Households, total count of 6 person non-family households | 1 | 0.0% | Percent of all households |
| P026016 | Households, total count of 7 or more person non-family households | 1 | 0.0% | Percent of all households |
| P026A001 | Households, total count of households with White householder | 12,007 | 94.8% | Percent of all households |
| P026A002 | Households, total count of family households with White householder | 9,045 | 71.4% | Percent of all households |
| P026A009 | Households, total count of non-family households with White householder | 2,962 | 23.4% | Percent of all households |
| P026B001 | Households, total count of households with Black householder | 373 | 2.9% | Percent of all households |
| P026B002 | Households, total count of family households with Black householder | 280 | 2.2% | Percent of all households |
| P026B009 | Households, total count of non-family households with Black householder | 93 | 0.7% | Percent of all households |
| P026C001 | Households, total count of households with American Indian householder | 15 | 0.1% | Percent of all households |
| P026C002 | Households, total count of family households with American Indian householder | 9 | 0.1% | Percent of all households |
| P026C009 | Households, total count of non-family households with American Indian householder | 6 | 0.0% | Percent of all households |
| P026D001 | Households, total count of households with Asian householder | 153 | 1.2% | Percent of all households |
| P026D002 | Households, total count of family households with Asian householder | 127 | 1.0% | Percent of all households |
| P026D009 | Households, total count of non-family households with Asian householder | 26 | 0.2% | Percent of all households |
| P026E001 | Households, total count of households with Native Hawaiian / Pacific Islander householder | 4 | 0.0% | Percent of all households |
| P026E002 | Households, count of family HH with Native Hawaiian / Pacific Islander householder | 4 | 0.0% | Percent of all households |
| P026E009 | Households, count of non-family HH with Native Hawaiian / Pacific Islander householder | 0 | 0.0% | Percent of all households |
| P026F001 | Households, total count of households with Other Race householder | 30 | 0.2% | Percent of all households |
| P026F002 | Households, total count of family households with Other Race householder | 22 | 0.2% | Percent of all households |
| P026F009 | Households, total count of non-family households with Other Race householder | 8 | 0.1% | Percent of all households |
| P026G001 | Households, total count of households with householder listing 2 or more races | 81 | 0.6% | Percent of all households |
| P026G002 | Households, total count of family households with householder listing 2 or more races | 63 | 0.5% | Percent of all households |
| P026G009 | Households, total count of non-family households with householder listing 2 or more races | 18 | 0.1% | Percent of all households |
| P026H001 | Households, total count of households with Hispanic householder | 91 | 0.7% | Percent of all households |
| P026H002 | Households, total count of family households with Hispanic householder | 72 | 0.6% | Percent of all households |
| P026H009 | Households, total count of non-family households with Hispanic householder | 19 | 0.2% | Percent of all households |