The rapid population changes, particularly the decline from 2019 to 2021, may be attributed to factors such as changes in the local economy, housing market shifts, or the impact of the COVID-19 pandemic.

Despite fluctuations, Rancho Yolo maintains a high population density. This suggests an urban lifestyle with access to amenities within walking distance. The compact nature of the neighborhood may facilitate community interaction.

Davis is known for its connection to the University of California, Davis campus. This college town atmosphere may contribute to the neighborhood's population variability, with student housing potentially influencing demographic makeup and population density.

The estimated 366.67 housing units for the 2022 population, based on the national average household size, further indicates the dense, urban character of the neighborhood. This suggests a predominance of smaller living spaces and multi-unit dwellings.

In conclusion, Rancho Yolo is a densely populated urban neighborhood. The area's population fluctuations over the years indicate a responsive community, possibly influenced by broader economic and social trends affecting urban areas in California.