Auburn planners question state population projections as consultants present comp‑plan inventory

Consultants for the Auburn Comprehensive Planning Committee presented the draft inventory and analysis for the city's comprehensive plan and committee members pressed for details about the data sources after state population projections changed abruptly.

Mary Dunn, the consultant who produced the draft inventory and analysis, told the committee that the document “is required by the state of Maine's Management Act” and is organized around the chapters the act outlines. Dunn said the draft relies on a mix of federal and state datasets, including the American Community Survey (the report uses the 2023 ACS five‑year estimates covering January 2019–December 2023), Longitudinal Employer‑Household Dynamics commuter data (most recent 2022), and demographic projections from the Maine State Economist.

The presentation summarized key findings: Auburn saw population growth from 2010 to 2020, recent increases in specific age cohorts (15–24 and 55–84), an older housing stock with many homes built before 1950, roughly 6,200 parcels located within 200 feet of water and sewer, about 18 active tax increment financing districts, and transportation and infrastructure notes including roughly 450 lane miles of roads and about 60 miles of sidewalks. The inventory also flagged natural‑resource strengths — Lake Auburn and other lakes with high water quality and a large agriculture/resource protection zone covering roughly half the city's land area.

Committee members focused their questions on population projections and data currency. Jeff Harmon, Mayor of Auburn, said the recent state projections produced a large change and asked for an explanation. “We’re not talking about a minor swing. We’re talking about a more than a 20 [percent] swing in the course of a few weeks,” Harmon said, urging the committee to understand the economist’s methods. Mary Dunn and staff recommended supplementing the state projections with local permit and clerk records; Dunn noted that the state advises caution when projecting beyond 2032 and that the inventory can be refined with more granular local data.

Several members asked that the committee obtain the Maine State Economist’s methodology and compare it with city permit and vital‑records data. Dana (last name not specified) and others emphasized that subcommittees should investigate additional local sources — for example, the city clerk’s birth data and local permit counts — to test whether current development activity might alter long‑term projections.

The committee also discussed data limitations and access. Dunn and consultant staff explained that some datasets (for example, ACS five‑year estimates) smooth multiple years of information and that more current single‑year estimates exist for certain metrics. Members noted a temporary SharePoint outage that had limited access to supporting files; staff said they had distributed the draft inventory directly by email to ensure committee access.

The committee then organized three subcommittees to review the inventory chapter‑by‑chapter and to recommend data updates or narrative edits: People & Services (population, demographics, city facilities, public services, fiscal capacity); Natural Environment (water and natural resources, agriculture and forestry, existing land use, parks, recreation, open space); and Built Environment (economy, housing, transportation, historic resources, and city facilities overlap). Members confirmed rosters and tentative meeting dates: People & Services on June 11 and June 25; Natural Environment on June 16 and June 30; Built Environment on June 9 and June 24. The chair said he and Mayor Harmon plan to attend subcommittee meetings as ex officio participants when possible.

A formal motion to accept the minutes of the prior meeting was moved by Rick (last name not specified), seconded by Jeff Harmon, and carried unanimously. Committee members were asked to send any dataset suggestions or corrections to Lauren Caffey, the city’s new long‑range planner, at lcaffey@auburnmaine.gov so staff and consultants can incorporate them before subcommittee review. The committee set an internal target for subcommittees to return proposed edits for consolidation by early July so consultants can produce an updated draft for the full committee to review.

The inventory and the committee’s follow‑up process will inform later visioning and land‑use discussions; committee members said they expect subcommittees to both verify the factual data and to recommend edits to the analysis narrative where local knowledge suggests changes.