Family researchers have long studied how far parents live from their adult children, but a new national report shines a light on the distance between siblings – a key factor in holiday gatherings, shared caregiving, and everyday support.
Average distance and regional patterns
Data from the Panel Study of Income Dynamics’ Family Information Mapping System, compiled by PeopleWin, shows sibling pairs who no longer share a household live an average of 157.5 miles apart. That is slightly closer than the average distance between parents and adult children (about 181 miles) and farther than the typical gap between grandparents and grandchildren.
While the national average seems large, the picture changes when you look closer to home. About 11.5% of siblings still share a household, another 13.2% live in the same census tract, and 34.5% reside in the same county. Adding the 23.8% who remain in the same state but a different county, more than eight in ten sibling pairs stay within state lines.
State‑by‑state migration trends
Migration data reveals that siblings on the West Coast often travel farther than those in the East and South. The biggest interstate flow is from California to Texas, with an estimated 77,000 people moving in a single year. Moves to Nevada, Arizona, Washington, Florida, and Oregon also top the list.
By contrast, East Coast moves tend to be shorter hops. New York’s largest outbound flow was to neighboring New Jersey (about 57,000 people), and residents of Florida and Georgia trade tens of thousands of movers back and forth. The proximity of these states keeps sibling networks tighter.
Why siblings live apart
Researchers identified three primary drivers of sibling distance over a lifetime. First, many people stay close to home because family ties keep them rooted; 74% of those who never left their hometown cite family as the reason. Second, education matters – college graduates move more often than those with only a high school diploma. Third, career opportunities and economic factors push families across state lines, especially from high‑cost states like California.
Impact on elder care
When parents age, sibling proximity becomes crucial. A 2025 AARP and National Alliance for Caregiving survey found that 40% of family caregivers live in the same house as the person they care for, and another 35% live within 20 minutes. Only 12% live one to two hours away or farther, meaning the sibling closest to an aging parent often shoulders the bulk of caregiving duties.
Caregivers who live more than an hour away report higher physical and financial strain, including travel time, missed work, and logistical challenges. Coordination with health professionals is also harder; only 58% describe it as easy, a 7% drop from 2015.
Distance does not equal emotional distance
Multiple studies confirm that geographic distance alone does not predict emotional closeness between adult siblings. Shared responsibility, open communication, and the use of digital tools can preserve strong bonds even when miles separate family members.
Families that plan ahead—dividing caregiving duties, discussing expectations, and staying connected through video calls or regular check‑ins—tend to navigate the challenges of distance more successfully than those who wait for a crisis to force action.
Takeaway for families
Whether siblings live next door or across the country, proactive communication and shared planning are essential. By understanding migration trends and the realities of caregiving, families can better support one another, uphold traditional family values, and honor the responsibility each sibling holds toward aging parents.
Original reporting: KEYT (Ventura/Santa Barbara) — read the source article.
