County 2011 Population Estimates (released April 2012)

The Census Bureau released new estimates of population in counties and metropolitan areas on April 5. The Kentucky State Data Center has produced estimates for the 15 Kentucky Area Development Districts form the new data. The estimates are available on the Kentucky State Data Center Estimates web page.

The new estimates show that four of the fifteen ADDs lost population between 2010 and 2011. These were Big Sandy (-601), FIVCO (-305), Kentucky River (-261) and Pennyrile (-767) Area Development Districts. The largest population gains were in Bluegrass ADD (+6,809) and Kentuckiana ADD (+6,543).

Among Kentucky's 120 Counties, 49 lost population in the new estimates. Christian County lost the most (-526) and twelve other counties were estimated to have populations reduced by at least 100 in the period from July 1, 2010 to July 1, 2011.

Lyon County was the only county that showed zero change in population, remaining at a total of 8,317 people. Of the remaining counties that gained population, five added at least 1,000 people; Fayette (+4,777), Jefferson (+4,730), Boone (+2,243) Warren (+1,352) and Madison (1,042).

For more information, here is the link to the Census Bureau press release about the new 2011 Population Estimates.

2011 National and State Total Population Estimates (Released December 2011)

Annual Estimates of Population and Population Change 2010-2011 for the U.S., States, and Puerto Rico

2011 Population Estimates: State, ADDs, and Counties (released April 2012)

1. Annual Estimates of the Total Population: April 1, 2010 to July 1, 2011

2. Cumulative Estimates of Population Change: April 1, 2010 to July 1, 2011

3. Estimates of Population Change: July 1, 2010 to July 1, 2011

4. Cumulative Estimates of the Components of Change: April 1, 2010 to July 1, 2011

5. Estimates of the Components of Population Change: July 1, 2010 to July 1, 2011

6. Estimates of the Annual Rates of the Components of Change: July 1, 2010 to July 1, 2011

Read the Census Bureau's press release about the new estimates here.

Household Forecasts

New Forecasts of Households and Household Size for Kentucky, ADDS and Counties

As a compliment to recently released population projections, KSDC has released forecasts of the number of households (occupied housing units) and household size (persons per household) for the state, ADDs, and counties. To produce these projections, the reliable cohort-headship method was employed with the KSDC projections of the population in households. Launched from 2010, projections are given at five-year intervals to 2050.

The Kentucky State Data Center has released new population forecasts based on the 2010 Census for state of Kentucky, the 15 Area Development Districts, and the 120 counties. Projections are provided for the total population and the population in households by sex and age. Launched from 2010, projections are given at 5-year intervals to 2050. Population pyramids displaying persons in households and group quarters are also provided for the 2000 Census, the 2010 Census, and projections in 2020, 2030, 2040, and 2050.

The household population and the group quarters population age 65 and above were projected using the demographic cohort-component method. County-specific assumptions about future mortality, fertility, and migration were derived from the latest demographic patterns and trends of the 2000-2010 decade. The group quarters population under age 65 was projected to remain constant at their 2010 Census counts. Projections of the group quarters population above age 65 were based on their share of the 2010 Census total population.

Keep up with the newest Kentucky data news at the KSDC blog.