The population changes may be attributed to various factors. The initial decline could be due to economic factors, changes in local job markets, or shifts in housing preferences. The recent increase might indicate renewed interest in the area, possibly due to urban revitalization efforts or changes in the local economy.

The neighborhood's proximity to the Big River is a notable feature. This location may offer recreational opportunities such as walking trails, parks, or water-based activities. The riverfront location could be a significant factor in attracting residents, potentially explaining the recent population increase.

The high population density suggests the neighborhood may have a community-oriented atmosphere, with local businesses, community centers, and parks. This density often supports a walkable environment, which could be appealing in a river-adjacent setting.

In summary, the Northwest Big River neighborhood is a dense suburban area that has experienced population fluctuations but appears to be growing modestly. Its riverfront location likely influences the community's character and appeal, offering a combination of urban convenience and natural surroundings.