Rarity Bay: Demographics & People
Rarity Bay is home to 757 people, in 401 households. Population grew 4.0% from 728 (2022) to 757 (2024). Median age 73.8 years. (28.6y older than Monroe County; 38.8y older than Tennessee). Population is 100% White (non-Hispanic). The community is relatively homogeneous (Simpson index 0.04). 80% of households are family-led. County is gaining 7,108 residents per year (2022-2023). County health: 36% adult obesity, 19% smoke.
- 1.9 people per household (vs Tennessee avg 2.5).
- 20% non-family households (singles, roommates) (vs Tennessee 42%).
Population & Trend
Population grew 4.0% from 728 (2022) to 757 (2024) — about 6.6× the recent U.S. annual rate of ~0.6%/yr. Estimated 2026 population: ~787 (extrapolated at 2.0%/yr trend). Census Bureau Vintage estimate: 829.
| Census data vintage | 2024 |
|---|---|
| Population | 54,886 people |
| Annual growth rate · Population change | 4.0% |
| Annual growth rate · Population (2022) | 728 |
| Annual growth rate · Population (2024) | 757 |
| Annual growth rate · Population growing | Yes |
| Annual growth rate · Trend category | growing |
| Population | 757 people (vs Tennessee 63,091) |
| Population Estimate | 829 |
Sources: Census ACS 5-Year 2023, Table B01003 · Refreshed 2026-04-12
Age Distribution
Median age 73.8y is 34.9 years older than the U.S. median (38.9y).
| Age Summary · Median age | 73.8 years (vs Tennessee 35.0y) |
|---|---|
| Age Summary · Character | retirement community |
| Age Summary · Total Pop | 757 |
| Age Summary · 35 To 64 | 114.0× |
| Age Summary · 65 Plus | 643 |
| Age Summary · Pct 35 To 64 | 15.1% |
| Age Summary · Pct 65 Plus | 84.9% |
| Median age | 73.8 years (vs Tennessee 35.0y) |
Sources: Census ACS 5-Year 2024 — place-level B01001 query · Census ACS 5-Year 2023 · Refreshed 2026-04-29
Race, Ethnicity & Diversity
Of 757 residents, race / ethnicity breaks down by Census ACS counts (a person can identify with one or more groups). The Simpson diversity index is 0.04 (0 = single group, 1 = perfectly even distribution); this is read as relatively homogeneous.
| White residents | 728 |
|---|---|
| Hispanic or Latino residents | 15 |
| Diversity Index · Diversity index (Simpson) | 4.0% |
| Diversity Index · Diversity label | relatively homogeneous |
| Diversity Index · Groups counted | 2 |
| Diversity Index · Largest group share | 98.0% |
| White (non-Hispanic) population | 100.0% (vs Tennessee 66.3%) |
Sources: Census ACS 5-Year 2023 · Refreshed 2026-04-12
Ancestry
Self-reported ancestry from Census ACS — what residents report as their ethnic origin, separate from race. Counts can exceed population because people can list multiple ancestries.
Top (7)
Citizenship & Origin
Where residents were born and their citizenship status (Census ACS).
| Residents born in another state | 645 |
|---|---|
| Native-born U.S. citizens | 85.2% |
| Naturalized citizens | 14.8% |
| Total foreign-born residents | 80 |
| From Europe | 80 |
Households & Family Composition
401 households. Averaging 1.9 people each — smaller than the U.S. average of 2.5. 80% are family households — above the U.S. share of ~65%. Of 279 families, 0% are married couples with children.
| Total families | 279 |
|---|---|
| Average household size | 1.88 |
| Women who gave birth (past year) | 6.0% |
| Grandparents living with grandchildren | 947 |
| Grandparents responsible for grandchildren | 359 |
| Family households | 319 households (vs Tennessee 15,978) |
| Households that are families | 79.6% (vs Tennessee 58.5%) |
| Total households | 401 households (vs Tennessee 25,255) |
Sources: Census ACS 5-Year 2023 · Refreshed 2026-04-12
Residential Stability & Migration
How long residents have lived here and where they came from. 8.2% moved within the county in the past year — the U.S. baseline is roughly 8–10%. The surrounding county is gaining 7,108 residents per year on net (IRS migration data).
| Moved within the county (past year) | 8.2% |
|---|---|
| Migration · People moving in (annual) | 64,554 |
| Migration · People moving out (annual) | 57,446 |
| Migration · Net migration (in − out) | 7,108 |
| Migration · Population growing | Yes |
| Migration · Year | 2022-2023 |
Sources: IRS SOI Migration 2021-2022 · Refreshed 2026-04-12
Disability
Census ACS measures self-reported functional limitations — vision, hearing, mobility, cognitive, self-care, or independent-living. The U.S. baseline disability rate is about 12–13%; rates trend higher with median age.
| Residents with a disability | 136 |
|---|---|
| Disability rate | 17.3% |
Other
| Congressional District · District | 3 |
|---|---|
| Congressional District · Formatted | TN-03 |
| Congressional District · Congress | 118th |
| Cdc Birth Rate · Fips | 47105 |
| Cdc Birth Rate · State Fips | 47 |
| Cdc Birth Rate · County Fips | 105 |
| Cdc Birth Rate · County | Loudon |
| Cdc Birth Rate · Birth Rate | 25.9% |
| Cdc Birth Rate · Lower Ci | 22.00 |
| Cdc Birth Rate · Upper Ci | 30.30 |
| Cdc Mortality · Fips | 47105 |
| Cdc Mortality · County | Loudon County |
| Cdc Mortality · Urban Rural | Medium metro |
| Cdc Mortality · Total Deaths 2020 2023 | 1,953 |
| Cdc Vaccination · Fips | 47105 |
| Cdc Vaccination · County | Loudon County |
| Cdc Vaccination · Dose1 Pop Pct | 72.9% |
| Cdc Vaccination · Series Complete Pct | 65.8% |
| Cdc Vaccination · Booster Pct | 53.9% |
| Cdc Vaccination · Population 2019 | 54,068 |
| Cdc Vaccination · Metro Status | Metro |
| Family Score · Score | 7.50 |
| Family Score · Schools | 13 |
| Family Score · Rating | excellent |
| Town Summary · Key Facts | population 757, growing, retirement community, upper-middle, service economy |
| Town Summary · Population | 757 people (vs Tennessee 63,091) |
| Town Summary · County | Loudon County |
Sources: Census place-to-CD118 crosswalk (place_fips) · federal dataset cascade