Blue Grass: Demographics & People
Blue Grass is home to 1,972 people, in 929 households. Population grew 5.6% from 1,867 (2022) to 1,972 (2024). Median age 48.3 years. (8.9y older than Scott County; 11.0y older than Iowa). Children under 18 are 21% of the population. Population is 85% White (non-Hispanic) and 10% Hispanic or Latino. The community is relatively homogeneous (Simpson index 0.17). 70% of households are family-led. County is losing 310 residents per year (2022-2023). County health: 38% adult obesity, 16% smoke.
- 2.1 people per household (vs Iowa avg 2.4).
- 30% non-family households (singles, roommates) (vs Iowa 43%).
- 80 dependents per 100 working-age (youth + seniors / 18-64) (vs Iowa 70).
Population & Trend
Population grew 5.6% from 1,867 (2022) to 1,972 (2024) — about 9.4× the recent U.S. annual rate of ~0.6%/yr. Estimated 2026 population: ~2,084 (extrapolated at 2.8%/yr trend). Census Bureau Vintage estimate: 2,240.
| Census data vintage | 2024 |
|---|---|
| Population | 43,235 people |
| Annual growth rate · Population change | 5.6% |
| Annual growth rate · Population (2022) | 1,867 |
| Annual growth rate · Population (2024) | 1,972 |
| Annual growth rate · Population growing | Yes |
| Annual growth rate · Trend category | booming |
| Population | 1,972 people (vs Iowa 24,827) |
| Population Estimate | 2,240 |
Sources: Census ACS 5-Year 2023, Table B01003 · Refreshed 2026-04-12
Age Distribution
Median age 48.3y is 9.4 years older than the U.S. median (38.9y). Children under 18 make up 21% — below the U.S. share of ~22%.
| Age Summary · Median age | 48.3 years (vs Iowa 37.3y) |
|---|---|
| Age Summary · Children Pct | 20.7% |
| Age Summary · Character | established |
| Age Summary · Total Pop | 1,972 |
| Age Summary · Under 18 | 408 |
| Age Summary · 18 To 34 | 310.0× |
| Age Summary · 35 To 64 | 786.0× |
| Age Summary · 65 Plus | 468 |
| Population under 18 | 408 |
| Median age | 48.3 years (vs Iowa 37.3y) |
Sources: Census ACS 5-Year 2024 — place-level B01001 query · Census ACS 5-Year 2023 · Refreshed 2026-04-29
Race, Ethnicity & Diversity
Of 1,972 residents, race / ethnicity breaks down by Census ACS counts (a person can identify with one or more groups). The Simpson diversity index is 0.17 (0 = single group, 1 = perfectly even distribution); this is read as relatively homogeneous.
| White residents | 1,718 |
|---|---|
| Black residents | 39 |
| Asian residents | 5 |
| Hispanic or Latino residents | 124 |
| Diversity Index · Diversity index (Simpson) | 16.6% |
| Diversity Index · Diversity label | relatively homogeneous |
| Diversity Index · Groups counted | 4 |
| Diversity Index · Largest group share | 91.1% |
| Asian population | 0.2% (vs Iowa 1.9%) |
| Black population | 0.2% (vs Iowa 3.6%) |
| Hispanic or Latino population | 10.1% (vs Iowa 5.6%) |
| White (non-Hispanic) population | 84.8% (vs Iowa 81.2%) |
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 (8)
Citizenship & Origin
Where residents were born and their citizenship status (Census ACS). 1.0% are foreign-born — below the U.S. average of 13.9%. 2% have naturalized to U.S. citizenship.
| Residents born in this state | 1,330 |
|---|---|
| Residents born in another state | 582 |
| Share born in this state | 67.4% |
| Share born in another state | 32.6% |
| Native-born U.S. citizens | 29.5% |
| Foreign-born residents | 1.0% |
| Naturalized citizens | 2.1% |
| Total foreign-born residents | 32 |
| From Europe | 27 |
| From Africa | 5 |
Households & Family Composition
929 households. Averaging 2.2 people each — smaller than the U.S. average of 2.5. 70% are family households — above the U.S. share of ~65%. Of 600 families, 21% are married couples with children.
| Children under 18 | 405 |
|---|---|
| Total families | 600 |
| Married couples with children | 127 |
| Single-parent households | 11 |
| Average household size | 2.19 |
| Women who gave birth (past year) | 17.2% |
| Grandparents living with grandchildren | 12 |
| Grandparents responsible for grandchildren | 3 |
| Family households | 655 households (vs Iowa 6,171) |
| Households that are families | 70.5% (vs Iowa 57.4%) |
| Total households | 929 households (vs Iowa 10,135) |
Sources: Census ACS 5-Year 2023 · Refreshed 2026-04-12
Residential Stability & Migration
How long residents have lived here and where they came from. 14.2% moved within the county in the past year — the U.S. baseline is roughly 8–10%. The surrounding county is losing 310 residents per year on net (IRS migration data).
| Moved within the county (past year) | 14.2% |
|---|---|
| Migration · People moving in (annual) | 39,552 |
| Migration · People moving out (annual) | 39,862 |
| Migration · Net migration (in − out) | -310 |
| 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 | 175 |
|---|---|
| Disability rate | 9.4% |
Other
| Congressional District · District | 2 |
|---|---|
| Congressional District · Congress | 118th |
| Cdc Birth Rate · Fips | 19139 |
| Cdc Birth Rate · State Fips | 19 |
| Cdc Birth Rate · County Fips | 139 |
| Cdc Birth Rate · County | Muscatine |
| Cdc Birth Rate · Birth Rate | 19.1% |
| Cdc Birth Rate · Lower Ci | 15.90 |
| Cdc Birth Rate · Upper Ci | 22.70 |
| Cdc Mortality · Fips | 19139 |
| Cdc Mortality · County | Muscatine County |
| Cdc Mortality · Urban Rural | Micropolitan |
| Cdc Mortality · Total Deaths 2020 2023 | 1,256 |
| Cdc Vaccination · Fips | 19139 |
| Cdc Vaccination · County | Muscatine County |
| Cdc Vaccination · Dose1 Pop Pct | 68.4% |
| Cdc Vaccination · Series Complete Pct | 62.9% |
| Cdc Vaccination · Booster Pct | 53.3% |
| Cdc Vaccination · Population 2019 | 42,664 |
| Cdc Vaccination · Metro Status | Non-metro |
| Family Score · Score | 2.10 |
| Family Score · Schools | 1 |
| Family Score · Childcare Centers | 2 |
| Family Score · Children Pct | 20.7% |
| Family Score · Rating | limited |
| Town Summary · Key Facts | population 1,972, booming, established, upper-middle, mixed |
| Town Summary · Population | 1,972 people (vs Iowa 24,827) |
| Town Summary · County | Muscatine County |
Sources: NCES school congressional district assignment · federal dataset cascade