Current baseline note

The Consortium adopted its 2024 projection series in December 2025 in lieu of a new 2025 series. Check for later action before reuse.

SECTION 01

The Delaware Population Consortium

The Delaware Population Consortium prepares a common set of long-range population projections for Delaware, its counties and incorporated municipalities. Its membership draws on state and local planning, transportation, labor, education and housing agencies. The projections are a shared planning baseline, not a promise that a particular town will grow by an exact amount.

Source note Delaware Population Consortium

SECTION 02

Which projection series is current?

The state’s projection-data page says that at its December 11, 2025 meeting, the Consortium voted to use the 2024 population projections in lieu of issuing a new 2025 series. The page lists the October 14, 2024 projection tables and supporting spreadsheets. Readers should check for a newer adopted series before quoting the figures as current.

Source note Annual Population Projections data page

SECTION 03

How projections affect planning

Local comprehensive plans use population and demographic assumptions to consider future land use, housing, public services, transportation and infrastructure. Because the forecasts extend decades into the future, assumptions about migration, household size, employment and seasonal populations matter. A projection should be read alongside its geography, base year, horizon and scenario—not as a precise year-by-year guarantee.
SECTION 04

Seasonal and local differences

Delaware’s coastal communities experience seasonal population patterns that differ from year-round household counts. A county-level total can also hide substantial variation among municipalities, growth areas and rural areas. For local planning questions, use the municipality-level series and the jurisdiction’s adopted comprehensive plan rather than assuming county trends apply uniformly.