Lotvox market story · compare
ZIP 21770 vs ZIP 21710
1 of 4
Who's going to sell
Turnover Index not published for 21770 yet.
Where
21770 in Frederick County, MD
21770 is one of 28 ZIP codes that lie mostly in Frederick County, MD.
Shaded by typical home value, it ranks 2 of the 23 with a value.
- Value rank in county
- 2 of 23
Source: U.S. Census Bureau, TIGER/Line boundaries; Zillow Home Value Index (ZHVI), Zillow Research
Local life
Schools in 21770
2 school locations in 21770: 2 elementary.
In alphabetical order: Green Valley Elementary, Kemptown Elementary. Locations only — no ratings are shown here.
- School locations
- 2
Source: U.S. Department of Education, National Center for Education Statistics (school locations)
Turnover Index not published for 21710 yet.
Where
21710 in Frederick County, MD
21710 is one of 28 ZIP codes that lie mostly in Frederick County, MD.
Shaded by typical home value, it ranks 3 of the 23 with a value.
- Value rank in county
- 3 of 23
Source: U.S. Census Bureau, TIGER/Line boundaries; Zillow Home Value Index (ZHVI), Zillow Research
Local life
Schools in 21710
1 school location in 21710: 1 elementary.
In alphabetical order: Carroll Manor Elementary. Locations only — no ratings are shown here.
- School locations
- 1
Source: U.S. Department of Education, National Center for Education Statistics (school locations)
2 of 4
What it costs
Home values
What homes are worth in 21770
In January 2000 the typical home in 21770 was worth $231,663.
Values peaked at $661,229 in April 2026. The latest reading is −0.1% from that peak.
As of August 2026: $660,508, +0.6% over twelve months.
- Typical home value
- $660,508
- 12-month change
- +0.6%
Source: Zillow Home Value Index (ZHVI), Zillow Research · data as of 2026-08-31
Housing pulse
Monthly cost vs. price
Start with the typical home: $660,508. Put 20% down and borrow $528,406 at 7.40%, the 30-year fixed average as of October 8, 2026.
That is $3,659 a month in principal and interest.
The median household here earns $184,464 a year, $15,372 a month. So the payment takes 23.8% of income — rated “affordable” (Lotvox ZIP bands: under 28% affordable · 28–36% stretched · 36%+ severe).
The line holds today's rate fixed and moves only the price: at that rate, the same share was 8.3% in 2000.
- Payment share of income
- 23.8%
- Monthly P&I
- $3,659
Source: Zillow Home Value Index (ZHVI), Zillow Research; Freddie Mac, 30-Year Fixed Rate Mortgage Average in the United States (MORTGAGE30US), retrieved from FRED®, Federal Reserve Bank of St. Louis; U.S. Census Bureau, American Community Survey 5-year estimates; Lotvox analysis (calculations on the sources above) · data as of 2026-08-31
Lotvox lens
The payment, at each month's rate
Take the typical home's price each month, borrow 80% at that month's actual 30-year average rate: in January 2000 (8.21%) the payment was $1,387.
In December 2020, with rates at 2.68%, it was $1,619.
By August 2026, at 6.67%, it was $3,398 — +110% since December 2020, while the home's value moved +32%.
- Payment change since 2020
- +110%
Source: Zillow Home Value Index (ZHVI), Zillow Research; Freddie Mac, 30-Year Fixed Rate Mortgage Average in the United States (MORTGAGE30US), retrieved from FRED®, Federal Reserve Bank of St. Louis; Lotvox analysis (calculations on the sources above) · data as of 2026-08
Lotvox lens
Home value after inflation
Deflated with CPI-U (seasonally adjusted, FRED CPIAUCSL) to August 2026; the site's Housing pulse chart uses its own CPI series, so older months can differ slightly.
Reported values rose +185% since January 2000.
General prices (CPI-U) rose +97% over the same span.
Divide one by the other: in August 2026 dollars, the 2000 home was worth $457,211. So the real change is +44%, not +185%.
- Real change since 2000
- +44%
Source: Zillow Home Value Index (ZHVI), Zillow Research; U.S. Bureau of Labor Statistics, Consumer Price Index (CPI-U), via FRED®, Federal Reserve Bank of St. Louis; Lotvox analysis (calculations on the sources above) · data as of 2026-08
Deflated with CPI-U (seasonally adjusted, FRED CPIAUCSL) to August 2026; the site's Housing pulse chart uses its own CPI series, so older months can differ slightly.
Home values
21770 against its neighbors
21770: +185% since January 2000.
Frederick County: +189% since January 2000.
Maryland: +180% since January 2000 — 21770 ran ahead of it by 5 points.
- Change since 2000
- +185%
Source: Zillow Home Value Index (ZHVI), Zillow Research; Lotvox analysis (calculations on the sources above) · data as of 2026-08
Lotvox lens
Rent or own
Owning the typical home costs about $4,319 a month once taxes and insurance (estimated at 1.2% of price a year) are added. Renting runs about $1,774 a month.
Price divided by a year's rent: 31.0. Lotvox reads under 15 as favoring buying and 20 or more as favoring renting.
- Price-to-rent
- 31.0
Source: Zillow Home Value Index (ZHVI), Zillow Research; U.S. Census Bureau, American Community Survey 5-year estimates; Freddie Mac, 30-Year Fixed Rate Mortgage Average in the United States (MORTGAGE30US), retrieved from FRED®, Federal Reserve Bank of St. Louis; Lotvox analysis (calculations on the sources above)
Home values
What homes are worth in 21710
In January 2000 the typical home in 21710 was worth $237,479.
Values peaked at $662,563 in December 2025. The latest reading is −0.6% from that peak.
As of August 2026: $658,402, 0.0% over twelve months.
- Typical home value
- $658,402
- 12-month change
- 0.0%
Source: Zillow Home Value Index (ZHVI), Zillow Research · data as of 2026-08-31
Housing pulse
Monthly cost vs. price
Start with the typical home: $658,402. Put 20% down and borrow $526,722 at 7.40%, the 30-year fixed average as of October 8, 2026.
That is $3,647 a month in principal and interest.
The median household here earns $164,727 a year, $13,727 a month. So the payment takes 26.6% of income — rated “affordable” (Lotvox ZIP bands: under 28% affordable · 28–36% stretched · 36%+ severe).
The line holds today's rate fixed and moves only the price: at that rate, the same share was 9.6% in 2000.
- Payment share of income
- 26.6%
- Monthly P&I
- $3,647
Source: Zillow Home Value Index (ZHVI), Zillow Research; Freddie Mac, 30-Year Fixed Rate Mortgage Average in the United States (MORTGAGE30US), retrieved from FRED®, Federal Reserve Bank of St. Louis; U.S. Census Bureau, American Community Survey 5-year estimates; Lotvox analysis (calculations on the sources above) · data as of 2026-08-31
Lotvox lens
The payment, at each month's rate
Take the typical home's price each month, borrow 80% at that month's actual 30-year average rate: in January 2000 (8.21%) the payment was $1,422.
In December 2020, with rates at 2.68%, it was $1,619.
By August 2026, at 6.67%, it was $3,387 — +109% since December 2020, while the home's value moved +32%.
- Payment change since 2020
- +109%
Source: Zillow Home Value Index (ZHVI), Zillow Research; Freddie Mac, 30-Year Fixed Rate Mortgage Average in the United States (MORTGAGE30US), retrieved from FRED®, Federal Reserve Bank of St. Louis; Lotvox analysis (calculations on the sources above) · data as of 2026-08
Lotvox lens
Home value after inflation
Deflated with CPI-U (seasonally adjusted, FRED CPIAUCSL) to August 2026; the site's Housing pulse chart uses its own CPI series, so older months can differ slightly.
Reported values rose +177% since January 2000.
General prices (CPI-U) rose +97% over the same span.
Divide one by the other: in August 2026 dollars, the 2000 home was worth $468,689. So the real change is +40%, not +177%.
- Real change since 2000
- +40%
Source: Zillow Home Value Index (ZHVI), Zillow Research; U.S. Bureau of Labor Statistics, Consumer Price Index (CPI-U), via FRED®, Federal Reserve Bank of St. Louis; Lotvox analysis (calculations on the sources above) · data as of 2026-08
Deflated with CPI-U (seasonally adjusted, FRED CPIAUCSL) to August 2026; the site's Housing pulse chart uses its own CPI series, so older months can differ slightly.
Home values
21710 against its neighbors
21710: +177% since January 2000.
Frederick County: +189% since January 2000.
Maryland: +180% since January 2000 — 21710 ran behind it by 3 points.
- Change since 2000
- +177%
Source: Zillow Home Value Index (ZHVI), Zillow Research; Lotvox analysis (calculations on the sources above) · data as of 2026-08
Lotvox lens
Rent or own
Owning the typical home costs about $4,305 a month once taxes and insurance (estimated at 1.2% of price a year) are added. Renting runs about $2,614 a month.
Price divided by a year's rent: 21.0. Lotvox reads under 15 as favoring buying and 20 or more as favoring renting.
- Price-to-rent
- 21.0
Source: Zillow Home Value Index (ZHVI), Zillow Research; Zillow Observed Rent Index (ZORI), Zillow Research; Freddie Mac, 30-Year Fixed Rate Mortgage Average in the United States (MORTGAGE30US), retrieved from FRED®, Federal Reserve Bank of St. Louis; Lotvox analysis (calculations on the sources above)
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What's moving
Housing pulse
Sales pace vs. normal
Homes sold: about 7 a month in August 2026 (Redfin).
The 2015–2019 level for the same month was 11 — so sales ran at 64% of it, and below it in 24 of the last 24 months.
- Sales vs 2015–19 level
- 64%
Source: Redfin Data Center (market tracker data); Lotvox analysis (calculations on the sources above) · data as of 2026-08
New supply
Homes being permitted
Across Frederick County, builders pulled permits for 1,168 new homes in 2025.
Of those, 70% were in 1-unit buildings (the Census Bureau's category for detached and attached single homes).
- Units permitted 2025
- 1,168
Source: U.S. Census Bureau, Building Permits Survey · data as of 2025
Housing pulse
Sales pace vs. normal
Homes sold: about 4 a month in August 2026 (Redfin).
The 2015–2019 level for the same month was 6 — so sales ran at 67% of it, and below it in 17 of the last 24 months.
- Sales vs 2015–19 level
- 67%
Source: Redfin Data Center (market tracker data); Lotvox analysis (calculations on the sources above) · data as of 2026-08
New supply
Homes being permitted
Across Frederick County, builders pulled permits for 1,168 new homes in 2025.
Of those, 70% were in 1-unit buildings (the Census Bureau's category for detached and attached single homes).
- Units permitted 2025
- 1,168
Source: U.S. Census Bureau, Building Permits Survey · data as of 2025
4 of 4
Who's holding, who's leaving
Housing pulse
Migration and inventory
This ZIP sits in Frederick County. IRS tax returns for 2022-2023: among the ten counties sending the most households, 5,021 moved in. Among the ten receiving the most, 3,461 moved out.
Net across those counties: +1,560 households. Beside it, homes for sale in this ZIP: 18 in June 2026.
Most arrivals came from Montgomery, MD (2,352 households); most departures went to Washington, MD (953).
- Net households (top-10 flows)
- +1,560
Source: IRS Statistics of Income, county-to-county migration data; Redfin Data Center (market tracker data) · data as of 2026-06-01
Housing pulse
Migration and inventory
This ZIP sits in Frederick County. IRS tax returns for 2022-2023: among the ten counties sending the most households, 5,021 moved in. Among the ten receiving the most, 3,461 moved out.
Net across those counties: +1,560 households. Beside it, homes for sale in this ZIP: 15 in June 2026.
Most arrivals came from Montgomery, MD (2,352 households); most departures went to Washington, MD (953).
- Net households (top-10 flows)
- +1,560
Source: IRS Statistics of Income, county-to-county migration data; Redfin Data Center (market tracker data) · data as of 2026-06-01