Population 19,592 · Census ACS 2020–24
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Population and households in Guilford
Household size in Guilford
| Period | Guilford | New Haven area | Connecticut | U.S. |
|---|---|---|---|---|
| 2006–10 | 2.53 | 2.55 | 2.57 | 2.68 |
| 2010–14 | 2.53 | 2.60 | 2.61 | 2.73 |
| 2015–19 | 2.64 | 2.55 | 2.57 | 2.71 |
| 2020–24 | 2.55 | 2.53 | 2.55 | 2.65 |
| Change | +0.02 | −0.02 | −0.02 | −0.03 |
The average household in Guilford has 2.55 people, a bit under the U.S. average of 2.65. The New Haven area as a whole looks much the same. The biggest households, usually families with children, are concentrated in the west.
Household size: the average number of people living in each occupied home. Source: BestNeighborhood calculations from U.S. Census Bureau ACS 5-year block-group estimates (table B25010).
Median age in Guilford
| Period | Guilford | New Haven area | Connecticut | U.S. |
|---|---|---|---|---|
| 2006–10 | 46.4 | 39.4 | 40.0 | 37.7 |
| 2010–14 | 48.4 | 40.3 | 41.0 | 38.6 |
| 2015–19 | 48.8 | 41.4 | 42.0 | 39.6 |
| 2020–24 | 50.6 | 41.7 | 42.1 | 40.1 |
| Change | +4.2 | +2.3 | +2.1 | +2.3 |
With a median age of 50.6, Guilford is noticeably older than the country as a whole (40.1), an age mix that tilts toward empty nesters and retirees. Since 2006–10, the median age has climbed from 46.4, in line with the national trend. Residents skew youngest in the north and oldest in the southeast.
Median age: the age that splits residents into two equal halves. Source: BestNeighborhood calculations from U.S. Census Bureau ACS 5-year block-group estimates (table B01002).
Single-parent households in Guilford
| Period | Guilford | New Haven area | Connecticut | U.S. |
|---|---|---|---|---|
| 2006–10 | 4.5% | 12.7% | 11.2% | 12.3% |
| 2010–14 | 7.5% | 12.4% | 11.6% | 12.3% |
| 2015–19 | 6.0% | 12.0% | 10.8% | 11.6% |
| 2020–24 | 6.1% | 13.5% | 11.4% | 11.6% |
| Change | +1.6 pts | +0.8 pts | +0.2 pts | −0.6 pts |
Single-parent households are relatively rare in Guilford: 6.1% of households, against 11.6% nationally. Since 2006–10, the single-parent share has risen 1.6 points, even as the national share fell.
Single-parent households: households where one adult with no spouse present lives with children under 18. Source: BestNeighborhood calculations from U.S. Census Bureau ACS 5-year block-group estimates (table B11003).
Housing in Guilford
Renters in Guilford
| Period | Guilford | New Haven area | Connecticut | U.S. |
|---|---|---|---|---|
| 2006–10 | 12.6% | 34.7% | 30.8% | 33.3% |
| 2010–14 | 14.8% | 36.8% | 32.7% | 35.6% |
| 2015–19 | 13.7% | 38.2% | 33.9% | 36.0% |
| 2020–24 | 16.7% | 37.6% | 33.5% | 34.8% |
| Change | +4.1 pts | +2.9 pts | +2.7 pts | +1.5 pts |
Guilford is largely a place of homeowners: only 16.7% of households rent, far below the national share of 34.8%. Owner-heavy areas like this tend to see less turnover. Among homeowners, 37.4% have no mortgage at all, about the same as nationally. The renter share is up 4.1 points from 2006–10, mirroring the country.
Renters: occupied homes that are rented rather than owned. Source: BestNeighborhood calculations from U.S. Census Bureau ACS 5-year block-group estimates (table B25003).
Vacant homes in Guilford
| Period | Guilford | New Haven area | Connecticut | U.S. |
|---|---|---|---|---|
| 2006–10 | 7.3% | 9.1% | 8.8% | 11.4% |
| 2010–14 | 9.6% | 10.6% | 9.5% | 11.4% |
| 2015–19 | 9.5% | 10.8% | 10.2% | 11.1% |
| 2020–24 | 9.6% | 8.0% | 7.9% | 9.6% |
| Change | +2.3 pts | −1.2 pts | −0.9 pts | −1.8 pts |
Just as many homes sit empty in Guilford as nationally: 9.6%. The rate is higher than in the New Haven area overall (8.0%). Vacancy is up 2.3 points from 2006–10, even as the national rate fell.
Vacant homes: homes with no one living in them, including vacation homes and homes for sale or rent. Source: BestNeighborhood calculations from U.S. Census Bureau ACS 5-year block-group estimates (table B25002).
Age of homes in Guilford
| Period | Guilford | New Haven area | Connecticut | U.S. |
|---|---|---|---|---|
| 2006–10 | 1971 | 1961 | 1963 | 1974 |
| 2010–14 | 1973 | 1961 | 1964 | 1975 |
| 2015–19 | 1972 | 1961 | 1964 | 1977 |
| 2020–24 | 1974 | 1964 | 1967 | 1980 |
| Change | +3 | +3 | +4 | +6 |
Homes in Guilford run older than the national norm, with a median build year of 1974 against 1980. Even so, homes here are newer than in the wider New Haven area, where the median home dates to 1964. The newest homes are mostly in the west, the oldest in the southeast.
Age of homes: the year that splits the housing stock into older and newer halves. Source: BestNeighborhood calculations from U.S. Census Bureau ACS 5-year block-group estimates (table B25035).
Rent in Guilford
| Period | Guilford | New Haven area | Connecticut | U.S. |
|---|---|---|---|---|
| 2006–10 | $1,405 | $1,093 | $1,127 | $965 |
| 2010–14 | $1,467 | $1,175 | $1,218 | $1,040 |
| 2015–19 | $2,025 | $1,288 | $1,380 | $1,213 |
| 2020–24 | $1,738 | $1,584 | $1,702 | $1,571 |
| Change | +$333 | +$491 | +$575 | +$606 |
A typical rental in Guilford costs $1,738 a month with utilities, above the national median of $1,571. Rent has climbed $333 a month since 2006–10, up 24%, a slower climb than the nation's. Rent takes 31.5% of the typical renter's income, just over the 30% mark often used to define affordable rent.
Rent: monthly rent plus the utilities renters pay themselves. Source: BestNeighborhood calculations from U.S. Census Bureau ACS 5-year block-group estimates (table B25064).
Education in Guilford
Bachelor's degrees in Guilford
| Period | Guilford | New Haven area | Connecticut | U.S. |
|---|---|---|---|---|
| 2006–10 | 54.6% | 31.6% | 35.5% | 28.4% |
| 2010–14 | 58.1% | 33.1% | 37.0% | 29.6% |
| 2015–19 | 58.9% | 34.5% | 39.2% | 32.1% |
| 2020–24 | 60.9% | 38.5% | 42.3% | 35.6% |
| Change | +6.3 pts | +6.9 pts | +6.8 pts | +7.2 pts |
College graduates are unusually common in Guilford: 60.9% of adults 25 and older have a bachelor's degree or higher, against 35.6% nationally. Education tends to track local incomes and the kinds of jobs nearby. The share with a degree is up 6.3 points from 2006–10, as it has nationally.
Bachelor's degrees: adults 25 and older with a bachelor's degree or higher. Source: BestNeighborhood calculations from U.S. Census Bureau ACS 5-year block-group estimates (table B15003).
High school graduates in Guilford
| Period | Guilford | New Haven area | Connecticut | U.S. |
|---|---|---|---|---|
| 2006–10 | 96.2% | 87.4% | 88.1% | 84.9% |
| 2010–14 | 96.4% | 88.4% | 89.2% | 86.1% |
| 2015–19 | 96.1% | 89.6% | 90.4% | 87.7% |
| 2020–24 | 98.2% | 90.6% | 91.2% | 89.3% |
| Change | +1.9 pts | +3.2 pts | +3.1 pts | +4.3 pts |
Finishing high school is nearly universal in Guilford: 98.2% of adults 25 and older have a diploma or equivalent, well above the national rate of 89.3%. The share with a diploma is up 1.9 points from 2006–10, as it has nationally. Guilford has a higher share of high school graduates than at least four in five Connecticut cities.
High school graduates: adults 25 and older with a high school diploma, GED or more. Source: BestNeighborhood calculations from U.S. Census Bureau ACS 5-year block-group estimates (table B15003).
Jobs in Guilford
| Period | Guilford | New Haven area | Connecticut | U.S. |
|---|---|---|---|---|
| 2006–10 | 5.5% | 8.5% | 7.8% | 8.1% |
| 2010–14 | 5.7% | 10.7% | 9.7% | 9.4% |
| 2015–19 | 3.7% | 6.7% | 6.2% | 5.6% |
| 2020–24 | 4.4% | 6.4% | 5.6% | 5.4% |
| Change | −1.2 pts | −2.2 pts | −2.1 pts | −2.7 pts |
Unemployment in Guilford runs below the national rate: 4.4% of the labor force was out of work and looking, against 5.4% nationally. Unemployment has edged down 1.2 points since 2006–10, in line with the national trend. Each figure pools five years of surveys (2020–24), so it describes that whole stretch rather than today's job market.
Unemployment: people looking for work as a share of everyone working or looking. Source: BestNeighborhood calculations from U.S. Census Bureau ACS 5-year block-group estimates (table B23025).
Guilford compared with nearby cities
| City | Household size | Median age | Single parents | Renters | Vacant homes | Median year built | Median rent | Bachelor's degree | High school diploma | Unemployment |
|---|---|---|---|---|---|---|---|---|---|---|
| Guilford | 2.55 | 50.6 | 6.1% | 16.7% | 9.6% | 1974 | $1,738 | 60.9% | 98.2% | 4.4% |
| Stony Creek | 2.59 | 52.2 | 7.4% | 11.7% | 7.4% | 1976 | $1,918 | 57.1% | 96.0% | 6.7% |
| Madison | 2.51 | 51.6 | 4.5% | 9.9% | 9.4% | 1975 | $2,168 | 72.5% | 98.6% | 4.2% |
| North Branford | 2.48 | 50.9 | 12.4% | 12.5% | 5.9% | 1976 | $1,946 | 32.8% | 95.6% | 6.7% |
| North Guilford | 2.66 | 45.6 | 6.5% | 15.1% | 6.5% | 1979 | $1,916 | 58.4% | 97.3% | 4.3% |
| Branford | 2.22 | 53.8 | 7.6% | 21.1% | 8.8% | 1970 | $1,788 | 52.9% | 95.4% | 4.0% |
| Branford Center | 1.99 | 47.2 | 5.6% | 58.3% | 1.6% | 1970 | $1,620 | 45.3% | 96.8% | 4.1% |
| Northford | 2.78 | 46.4 | 8.8% | 9.7% | 4.8% | 1975 | $1,433 | 37.6% | 94.5% | 3.6% |
| Killingworth | 2.55 | 50.6 | 3.0% | 3.3% | 9.3% | 1986 | $1,429 | 55.2% | 98.5% | 4.6% |
| Seaview Beach | 1.98 | 62.8 | 0.8% | 17.1% | 40.7% | 1971 | $2,025 | 82.2% | 100.0% | 8.7% |
| Clinton | 2.46 | 49.8 | 8.5% | 15.3% | 13.5% | 1971 | $1,416 | 42.2% | 94.7% | 4.9% |
All figures 2020–24.
Cities with similar populations: Murphy, TX · Oxford, AL · Orocovis, PR · Orinda, CA · Ontario, OR · Oneonta, NY · Norwood, OH · North Ogden, UT · Niles, OH · Newington, VA
About these numbers
Every figure on this page is a BestNeighborhood calculation from the Census Bureau's American Community Survey (ACS), built up from the Census block groups that make up Guilford. Each ACS 5-year release pools five years of responses; this page shows the last 15 releases, 2006–10 through 2020–24. Neighboring releases share four of their five years, so they move gradually and small changes between them are within the survey's margin of error; in small places the lines can jump from one release to the next for the same reason. The maps show the same measures for each neighborhood, ranked against the whole country.
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