County profile · Tennessee
Union County, TN market data
How Union County compares with other counties for 56 business types: competitors, household spending, official counts and growth.
- Population, 2025
- 21,450
- +8.1% since 2020
- Households
- 7,931
- Median household income
- $62,727
- +40.4% vs. 2015–2019, before inflation
- Median home value
- $204,000
- Jobs located here
- 2,637
- Highest market score
- 97
- Insurance agencies, #4 of 2,272 scored counties
A site report maps the competitors on map listings around any address in Union County by name and distance, and the households and spending within reach. Or open the report at the center of Union County. Signed out, you see a blurred preview; on an account, each report is one action.
Free10 actions over 3 days, no cardSurvey estimates 2020–2024 · population estimates 2025 · official business counts 2023 · map listings September 2026 · Data credits · How we measure
What this means
Union County has an estimated 21,450 people and 7,931 households. Population estimates put the population change in Union County from 2020 to 2025 at +8.1%, faster than the U.S. (+3.1%). Median household income in Union County is $62,727, 22% below the U.S. median of $80,734. Against the 2015–2019 survey, the median rose 40.4%, before inflation.
Relative to the U.S., household spending in Union County runs highest on vehicle insurance (an index of 158, where 100 is the U.S. average) and lowest on memberships, classes and admissions (58).
Of the business types scored in Union County, insurance agencies (97), auto repair shops (89) and auto repair and car care businesses (82) have the highest Groundwork market scores. For insurance agencies, that ranks #4 of 2,272 scored counties.
Union County is part of the Knoxville metro area. Against the U.S., map listings per household run highest for gas stations (39% above the U.S. rate) and lowest for salons, barbers and spas (68% below the U.S. rate).
All 56 business types in Union County
Highest Groundwork market score first. Each score compares Union County with other counties for that business type, from 0 to 100. Spending per listing divides a whole spending line (all vehicle repairs, all eating out) by one type’s listings: the demand for each competitor, not a business’s revenue. Compare it across markets with its index, where 100 is the U.S. figure for the same type; the real estate types, whose line is all housing costs, show the index only. How the score works.
| Business type | Score | Rank among counties | Listings | Per 10k households | Spending per listing | Spending per listing vs. U.S. (100) | Official establishments |
|---|---|---|---|---|---|---|---|
| Insurance agencies | 97 | #4 of 2,272 | 5 | 6.3 | $4.9M | 390 | Under 3 |
| Auto repair shops | 89 | #28 of 2,378 | 10 | 12.6 | $865K | 194 | 4 |
| Auto repair and car care | 82 | #97 of 2,401 | 26 | 32.8 | $333K | 124 | 7 |
| Real estate | 80 | #20 of 2,229 | 6 | 7.6 | Index only | 421 | Under 3 |
| Restaurants and cafes | 80 | #130 of 2,405 | 38 | 47.9 | $689K | 186 | 19 |
| Real estate agents and brokers | 79 | #39 of 2,176 | 6 | 7.6 | Index only | 334 | Under 3 |
| Sit-down restaurants | 78 | #161 of 2,405 | 24 | 30.3 | $1.1M | 164 | 7 |
| Salons, barbers and spas | 75 | #161 of 2,385 | 12 | 15.1 | $526K | 247 | Under 3 |
| Grocery and convenience stores | 75 | #289 of 2,402 | 10 | 12.6 | $4.4M | 131 | Under 3 |
| Doctors, dentists and clinics | 74 | #237 of 2,394 | 23 | 29.0 | $346K | 227 | 8 |
| Fast food and sandwich shops | 74 | #256 of 2,222 | 7 | 8.8 | $3.7M | 123 | 9 |
| Pet businesses | 72 | #229 of 2,200 | 7 | 8.8 | $885K | 101 | Under 3 |
| Hair salons | 72 | #231 of 2,339 | 9 | 11.3 | $701K | 163 | Under 3 |
| Gas stations | 71 | #384 of 2,358 | 12 | 15.1 | $2.4M | 99 | 11 |
| Home repair trades | 64 | #409 of 2,057 | 8 | 10.1 | $2.5M | 105 | 11 |
| Grocery stores | 58 | #753 of 2,070 | 5 | 6.3 | $8.9M | 96 | Under 3 |
| Pizza | 55 | #847 of 2,090 | 8 | 10.1 | $3.3M | 64 | 9 |
| Car washes and detailing | Not scored | Not scored | 4 | 5.0 | $2.2M | 86 | Under 3 |
| Clothing, shoes and laundry | Not scored | Not scored | 4 | 5.0 | $3.3M | 376 | Under 3 |
| Convenience stores | Not scored | Not scored | 4 | 5.0 | $11.1M | 141 | Under 3 |
| Physical therapy | Not scored | Not scored | 4 | 5.0 | $2M | 83 | 3 |
| Primary care and pediatrics | Not scored | Not scored | 4 | 5.0 | $2M | 112 | 5 |
| Child care and preschools | Not scored | Not scored | 3 | 3.8 | $919K | 92 | 3 |
| Collision repair and body shops | Not scored | Not scored | 3 | 3.8 | $2.9M | 94 | Under 3 |
| HVAC and plumbing | Not scored | Not scored | 3 | 3.8 | $6.8M | 143 | 5 |
| Roofing and gutters | Not scored | Not scored | 3 | 3.8 | $6.8M | 80 | 3 |
| Veterinarians | Not scored | Not scored | 3 | 3.8 | $2.1M | 76 | Under 3 |
| Bakeries and dessert shops | Not scored | Not scored | 2 | 2.5 | $13.1M | Too few | 3 |
| Chiropractors | Not scored | Not scored | 2 | 2.5 | $4M | Too few | Under 3 |
| Clothing and shoe stores | Not scored | Not scored | 2 | 2.5 | $6.6M | Too few | Under 3 |
| Coffee shops and cafes | Not scored | Not scored | 2 | 2.5 | $13.1M | Too few | 3 |
| Electricians | Not scored | Not scored | 2 | 2.5 | $10.2M | Too few | 3 |
| Funeral homes | Not scored | Not scored | 2 | 2.5 | $554K | Too few | Under 3 |
| Pet grooming and boarding | Not scored | Not scored | 2 | 2.5 | $3.1M | Too few | Under 3 |
| Spas and skin care | Not scored | Not scored | 2 | 2.5 | $3.2M | Too few | Under 3 |
| Barbershops | Not scored | Not scored | 1 | 1.3 | $6.3M | Too few | Under 3 |
| Dentists and orthodontists | Not scored | Not scored | 1 | 1.3 | $8M | Too few | Under 3 |
| Gyms | Not scored | Not scored | 1 | 1.3 | $4.5M | Too few | Under 3 |
| Gyms, studios and classes | Not scored | Not scored | 1 | 1.3 | $4.5M | Too few | Under 3 |
| Landscaping and lawn care | Not scored | Not scored | 1 | 1.3 | $10.5M | Too few | 8 |
| Laundromats | Not scored | Not scored | 1 | 1.3 | $13.2M | Too few | Under 3 |
| Lawn, cleaning and pest control | Not scored | Not scored | 1 | 1.3 | $10.5M | Too few | 11 |
| Pet stores | Not scored | Not scored | 1 | 1.3 | $6.2M | Too few | Under 3 |
| Tire shops | Not scored | Not scored | 1 | 1.3 | $8.6M | Too few | Under 3 |
| Urgent care and walk-in clinics | Not scored | Not scored | 1 | 1.3 | $8M | Too few | Under 3 |
| Dry cleaners | Not scored | Not scored | 0 | 0.0 | None listed | None listed | Under 3 |
| Home inspectors | Not scored | Not scored | 0 | 0.0 | None listed | None listed | Under 3 |
| House cleaning | Not scored | Not scored | 0 | 0.0 | None listed | None listed | 3 |
| Martial arts and dance studios | Not scored | Not scored | 0 | 0.0 | None listed | None listed | Under 3 |
| Mortgage brokers and lenders | Not scored | Not scored | 0 | 0.0 | None listed | None listed | Under 3 |
| Nail salons | Not scored | Not scored | 0 | 0.0 | None listed | None listed | Under 3 |
| Oil change and quick lube | Not scored | Not scored | 0 | 0.0 | None listed | None listed | Under 3 |
| Optometrists and eye care | Not scored | Not scored | 0 | 0.0 | None listed | None listed | Under 3 |
| Pest control | Not scored | Not scored | 0 | 0.0 | None listed | None listed | Under 3 |
| Property management | Not scored | Not scored | 0 | 0.0 | None listed | None listed | Under 3 |
| Yoga, Pilates and fitness studios | Not scored | Not scored | 0 | 0.0 | None listed | None listed | Under 3 |
Household spending in Union County
What households here spend in a year on each line, in total and per household, with the index against the U.S. average (100).
| Spending line | A year, all households | Per household | Index vs. U.S. (100) |
|---|---|---|---|
| Vehicle maintenance and repairs | $8.6M | $1,090 | 114 |
| Gasoline and other fuels | $28.4M | $3,586 | 138 |
| Food away from home | $26.2M | $3,301 | 81 |
| Groceries | $44.4M | $5,601 | 89 |
| Personal care products and services | $6.3M | $795 | 79 |
| Child care and other personal services | $2.8M | $348 | 60 |
| Memberships, classes and admissions | $4.5M | $570 | 58 |
| Medical and dental services | $8M | $1,003 | 78 |
| Pets | $6.2M | $781 | 86 |
| Clothing, shoes and related services | $13.2M | $1,671 | 81 |
| Vehicle insurance | $24.5M | $3,085 | 158 |
| Home repairs, maintenance and insurance | $20.4M | $2,566 | 85 |
| Lawn care, cleaning and other household services | $10.5M | $1,323 | 94 |
| Rent and homeowner costs | $109.4M | $13,788 | 83 |
Household spending is estimated from the incomes of the households in each neighborhood, using what households at each income spent nationally in 2024, adjusted for the region. It counts what residents spend, wherever they spend it.
Population and households in Union County
- Population, 2025 estimate
- 21,450+8.1% since 2020
- Households
- 7,931
- Median age
- 42.9
- Homes lived in by their owners
- 80%
- Vehicles per household
- 2.4
- Land area
- 224 sq. mi.
- People per square mile
- 91
- Median household income
- $62,727+40.4% vs. 2015–2019, before inflation
- Average household income
- $75,767
- Median home value
- $204,000
- Jobs located here
- 2,637
- Daytime population
- 14,910Residents who don’t work, plus everyone whose job is here
Looking at a specific site in Union County?
These figures cover the whole county. A site report draws rings around one address and counts what’s inside them: households, spending, jobs, and the competitors on map listings by name and distance, for any of the 56 business types.
Or open the report at the center of Union County. Signed out, you see a blurred preview; on an account, each report is one action.
Free10 actions over 3 days, no cardRelated markets
Nearest counties in Tennessee 8
- Grainger County, TN24,266 people
- Claiborne County, TN32,466 people
- Campbell County, TN39,761 people
- Knox County, TN494,148 people
- Anderson County, TN79,153 people
- Jefferson County, TN56,864 people
- Hamblen County, TN65,669 people
- Sevier County, TN99,652 people
Questions
How fast is Union County, TN growing?
Population estimates put Union County at 21,450 people in 2025, up 8.1% since 2020, faster than the U.S. (+3.1%). It has 7,931 households. Median household income rose 40.4% from the 2015–2019 survey, before inflation.
How much do households in Union County, TN spend?
Households in Union County spend about $109.4M a year on rent and homeowner costs, $44.4M on groceries and $28.4M on gasoline and other fuels. Set against the U.S., households in Union County spend the most on vehicle insurance (an index of 158, where 100 is the U.S. average) and the least on memberships, classes and admissions (58).
Which business types have the highest market scores in Union County, TN?
The highest Groundwork market scores in Union County are for insurance agencies (97), auto repair shops (89) and auto repair and car care businesses (82). Union County ranks #4 of 2,272 scored counties for insurance agencies.
How does Union County, TN compare with the U.S.?
The median household income in Union County is $62,727 a year, 22% below the U.S. median of $80,734. The population rose 8.1% from 2020 to 2025, against +3.1% for the U.S. The median home value is $204,000, against $332,700 for the U.S. For its number of households, Union County has the most map listings, relative to the U.S., for gas stations (39% above the U.S. rate) and the fewest for salons, barbers and spas (68% below the U.S. rate).
What is the Groundwork market score?
The Groundwork market score runs from 0 to 100 and compares a market with others of its kind for one business type: states with states, metro areas with metro areas, small-town markets and counties with their own. It weighs household spending per competitor (35%), households per business with payroll (25%), population growth (20%) and spending power (20%), each ranked against those peers. A higher score means that, taken together, the market has more household spending and more households for each business already there, faster population growth and more spending per household than similar markets. It describes a market, not any one site or deal. 17 of the 56 business types have a score in Union County, each ranked against other counties.
How can I see the market around a specific site?
Run a Groundwork site report on an address in Union County. It maps the competitors on map listings near the site and sizes the households and spending within the distance you choose. New accounts get 10 actions over 3 days, no card.
All markets in Tennessee · Every U.S. market · How we measure
Screening a site or an acquisition in Union County?
A site report maps the competitors on map listings near an address and sizes the households and spending around it.
The button opens the report at the center of Union County. Signed out, you see a blurred preview; on an account, each report is one action.
This product uses the Census Bureau Data API but is not endorsed or certified by the Census Bureau.
Figures are estimates for research only. Not investment or real estate advice.