There were 562 households out of which 49.1% had children under the age of 18 living with them, 64.9% were married couples living together, 16.4% had a female householder with no husband present, and 16.0% were non-families. 14.1% of all households were made up of individuals and 8.7% had someone living alone who was 65 years of age or older. The average household size was 3.51 and the average family size was 3.89.
In the city the population was spread out with 34.0% under the age of 18, 10.4% from 18 to 24, 26.0% from 25 to 44, 18.4% from 45 to 64, and 11.3% who were 65 years of age or older. The median age was 30 years. For every 100 females there were 87.5 males. For every 100 females age 18 and over, there were 83.3 males.
The median income for a household in the city was $25,521, and the median income for a family was $26,985. Males had a median income of $19,511 versus $16,827 for females. The per capita income for the city was $8,684. 30.6% of the population and 27.7% of families were below the poverty line. 34.2% of those under the age of 18 and 38.2% of those 65 and older were living below the poverty line.
In addition to the industrial activity, there is a vibrant retail sector that is dependent on purchases made by wealthy and middle-class Mexican consumers from Monterrey (connected to Reynosa by toll road) and Tampico. According to Cynthia Brown, director of UTPA's Center for Border Economic Studies, Mexicans invested $1.4 billion dollars into the economy and paid for 41,000 jobs. In 2003, the Rio Grande Valley showed a 13.3 percent increase from 2002 sales, topping $10 billion according to a report compiled by the Rio Grande Valley Partnership/Chamber of Commerce. Of this total, Hidalgo county accounted for $6,556,541,402. Unfortunately, Lyford is not located in Hidalgo County.