A significant change occurred between 2019 and 2021. The population increased from 65,033 to 71,928, representing a growth of about 10.6% over two years. This growth increased the population density from 1,621 people per square mile in 2019 to 1,793 people per square mile in 2021. The 2022 data shows a slight decrease to 71,669 residents, maintaining a density of 1,786 people per square mile.

This population surge suggests a trend towards increased suburbanization. The city is approaching the threshold of a more developed suburban area. With this growth, residents are likely experiencing an expansion of amenities, possibly including larger shopping centers and a more diverse range of recreational and cultural offerings.

The estimated 27,459 housing units for the 2022 population, based on the national average household size, indicates a substantial residential sector. This housing stock would need to accommodate the increased population, potentially leading to more compact housing solutions and possibly some multi-family dwellings.

Harlingen has evolved from a stable light suburban environment to a more dynamic and growing suburban area over the past few years. This transition suggests a community that is becoming more densely populated, with an expanding infrastructure and amenity base to support its growing population. The lifestyle for residents is likely becoming more diverse, offering a balance between suburban comfort and increasing urban-style conveniences.