The public education line deserves attention apart from the construction headline. In its March 1, 2017 release, the Census Bureau estimated January public educational construction at a seasonally adjusted annual rate of $69.2 billion. Its estimated monthly decline of 2.7 percent had a 90 percent sampling margin of 2.5 percentage points, excluding zero. [pr201701][pr201612]

That is a measure of construction value, not a count of classrooms completed, teachers employed or children served. Total public construction fell an estimated 5.0 percent, with a 1.8-point sampling margin. The aggregate construction estimate had a statistically uncertain monthly direction. A broad headline can therefore obscure a more clearly measured movement in a service-related category. [pr201701][pr201612]

The earlier February 1 release offers a different time frame: it estimated public construction during all of 2016 at $286.0 billion. Its estimated annual decline of 1.0 percent had a 1.5-point sampling margin and did not establish a fall. That annual total cannot be compared directly with January's annualized pace as though both measured actual spending over a full year. [pr201701][pr201612]

For families and school workers, the useful question is whether particular communities face capacity constraints, not whether a national dollar estimate proves classrooms disappeared. These related Census releases do not answer that local question. Monthly estimates are preliminary, their intervals cover sampling variability rather than every error, and irregular movements need not establish a trend. Evidence on completed facilities and access would be needed to connect the construction signal to service outcomes. [pr201701][pr201612]

Source documents

  1. Monthly Construction Spending, January 2017https://www.census.gov/construction/c30/pdf/pr201701.pdf
  2. December 2016 Constructionhttps://www.census.gov/construction/c30/pdf/pr201612.pdf