Over the past decade, Northumberland has experienced demographic shifts. The population has remained relatively stable, with a slight increase from 3,709 in 2019 to 3,892 in 2022. The median income has shown an upward trend, rising from $57,045 in 2019 to $64,082 in 2022, indicating a potential improvement in the overall economic situation of the residents.

Regarding racial distribution, the city has maintained a predominantly white population, though there has been a slight increase in diversity. The percentage of white residents decreased from 93% in 2018 to 92% in 2022, while the Hispanic population fluctuated between 3% and 6% during this period. The black population has remained relatively stable at around 1-3%.

Northumberland's LIHTC funded affordable housing inventory provides 24 low-income units through the Cannery Point project completed in 2010. This project represents 1.61% of the estimated housing stock in the city. The focus on three- and four-bedroom units suggests an emphasis on accommodating larger families. The city has experienced slight increases in population and median income over the past decade, while the racial composition has remained predominantly white with minor increases in diversity. These demographic trends provide context for understanding the affordable housing needs in Northumberland.