Willow Creek first appeared as a
census designated place in the
1990 U.S. census. The age distribution was 347 people (20.2%) under the age of 18, 72 people (4.2%) aged 18 to 24, 391 people (22.7%) aged 25 to 44, 458 people (26.6%) aged 45 to 64, and 452 people (26.3%) who were 65years of age or older. The median age was 47.5years. For every 100 females, there were 110.3 males, and for every 100 females age 18 and over, there were 108.0 males. There were 776 households, out of which 168 (21.6%) had children under the age of 18 living in them. Of all households, 308 (39.7%) were married-couple households, 83 (10.7%) were
cohabiting couple households, 194 (25.0%) had a female householder with no partner present, and 191 (24.6%) had a male householder with no partner present. 276 households (35.6%) were one person, and 115 (14.8%) were one person aged 65 or older. The average household size was 2.22. There were 434
families (55.9% of all households). There were 984 housing units at an average density of , of which 776 (78.9%) were occupied. Of these, 511 (65.9%) were owner-occupied, and 265 (34.1%) were occupied by renters. 21.1% of housing units were vacant. The homeowner vacancy rate was 3.2%, and the rental vacancy rate was 4.7%.
2010 census The
2010 United States census reported that Willow Creek had a population of 1,710. The population density was . The racial makeup of Willow Creek was 1,375 (80.4%)
White, 6 (0.4%)
African American, 167 (9.8%)
Native American, 14 (0.8%)
Asian, 6 (0.4%)
Pacific Islander, 29 (1.7%) from
other races, and 113 (6.6%) from two or more races.
Hispanic or
Latino of any race were 108 persons (6.3%). The Census reported that 1,699 people (99.4% of the population) lived in households, 11 (0.6%) lived in non-institutionalized group quarters, and 0 (0%) were institutionalized. There were 812 households, out of which 161 (19.8%) had children under the age of 18 living in them, 353 (43.5%) were
opposite-sex married couples living together, 63 (7.8%) had a female householder with no husband present, 32 (3.9%) had a male householder with no wife present. There were 75 (9.2%)
unmarried opposite-sex partnerships, and 7 (0.9%)
same-sex married couples or partnerships; 283 households (34.9%) were made up of individuals, and 94 (11.6%) had someone living alone who was 65 years of age or older. The average household size was 2.09. There were 448
families (55.2% of all households); the average family size was 2.65. The population was spread out, with 287 people (16.8%) under the age of 18, 100 people (5.8%) aged 18 to 24, 366 people (21.4%) aged 25 to 44, 642 people (37.5%) aged 45 to 64, and 315 people (18.4%) who were 65 years of age or older. The median age was 49.5 years. For every 100 females, there were 101.4 males. For every 100 females age 18 and over, there were 102.1 males. There were 1,108 housing units at an average density of , of which 812 were occupied, of which 525 (64.7%) were owner-occupied, and 287 (35.3%) were occupied by renters. The homeowner vacancy rate was 1.7%; the rental vacancy rate was 5.2%. 1,087 people (63.6% of the population) lived in owner-occupied housing units and 612 people (35.8%) lived in rental housing units. ==Government==